Home / 18,828.70-25,983.61-10,445.20

Finding the Fourth Proportional to 18,828.70, 25,983.61 and 10,445.20

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Solution

The fourth proportional to 18,828.70, 25,983.61 and 10,445.20 is: 14,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.70 : 25,983.61 = 10,445.20 : x
  2. Step 2: Convert to fraction form
    18,828.70/25,983.61 = 10,445.20/x
  3. Step 3: Cross multiply
    18,828.70x = 25,983.61 × 10,445.20
  4. Step 4: Simplify right side
    18,828.70x = 271,404,087.63
  5. Step 5: Solve for x
    x = 271,404,087.63/18,828.70
  6. Step 6: Final answer
    x = 14,414.38

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Half scale
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Double scale
Find fourth proportional to 18,829.70, 25,984.99 and 10,446.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.