Home / 18,828.75-25,984.89-10,445.25

Finding the Fourth Proportional to 18,828.75, 25,984.89 and 10,445.25

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Solution

The fourth proportional to 18,828.75, 25,984.89 and 10,445.25 is: 14,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.75 : 25,984.89 = 10,445.25 : x
  2. Step 2: Convert to fraction form
    18,828.75/25,984.89 = 10,445.25/x
  3. Step 3: Cross multiply
    18,828.75x = 25,984.89 × 10,445.25
  4. Step 4: Simplify right side
    18,828.75x = 271,418,672.27
  5. Step 5: Solve for x
    x = 271,418,672.27/18,828.75
  6. Step 6: Final answer
    x = 14,415.12

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Half scale
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Double scale
Find fourth proportional to 18,829.75, 25,986.27 and 10,446.25
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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.