Home / 19,503.45-29,265.30-9,115.20

Finding the Fourth Proportional to 19,503.45, 29,265.30 and 9,115.20

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Solution

The fourth proportional to 19,503.45, 29,265.30 and 9,115.20 is: 13,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,503.45 : 29,265.30 = 9,115.20 : x
  2. Step 2: Convert to fraction form
    19,503.45/29,265.30 = 9,115.20/x
  3. Step 3: Cross multiply
    19,503.45x = 29,265.30 × 9,115.20
  4. Step 4: Simplify right side
    19,503.45x = 266,759,062.56
  5. Step 5: Solve for x
    x = 266,759,062.56/19,503.45
  6. Step 6: Final answer
    x = 13,677.53

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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.