Home / 18,828.80-25,983.78-10,445.30

Finding the Fourth Proportional to 18,828.80, 25,983.78 and 10,445.30

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Solution

The fourth proportional to 18,828.80, 25,983.78 and 10,445.30 is: 14,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.80 : 25,983.78 = 10,445.30 : x
  2. Step 2: Convert to fraction form
    18,828.80/25,983.78 = 10,445.30/x
  3. Step 3: Cross multiply
    18,828.80x = 25,983.78 × 10,445.30
  4. Step 4: Simplify right side
    18,828.80x = 271,408,377.23
  5. Step 5: Solve for x
    x = 271,408,377.23/18,828.80
  6. Step 6: Final answer
    x = 14,414.53

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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.