Home / 10,285.55-15,447.15-9,418.04

Finding the Fourth Proportional to 10,285.55, 15,447.15 and 9,418.04

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Solution

The fourth proportional to 10,285.55, 15,447.15 and 9,418.04 is: 14,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.55 : 15,447.15 = 9,418.04 : x
  2. Step 2: Convert to fraction form
    10,285.55/15,447.15 = 9,418.04/x
  3. Step 3: Cross multiply
    10,285.55x = 15,447.15 × 9,418.04
  4. Step 4: Simplify right side
    10,285.55x = 145,481,876.59
  5. Step 5: Solve for x
    x = 145,481,876.59/10,285.55
  6. Step 6: Final answer
    x = 14,144.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.