Home / 19,402.12-29,103.18-7,715.44

Finding the Fourth Proportional to 19,402.12, 29,103.18 and 7,715.44

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Solution

The fourth proportional to 19,402.12, 29,103.18 and 7,715.44 is: 11,573.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,402.12 : 29,103.18 = 7,715.44 : x
  2. Step 2: Convert to fraction form
    19,402.12/29,103.18 = 7,715.44/x
  3. Step 3: Cross multiply
    19,402.12x = 29,103.18 × 7,715.44
  4. Step 4: Simplify right side
    19,402.12x = 224,543,839.10
  5. Step 5: Solve for x
    x = 224,543,839.10/19,402.12
  6. Step 6: Final answer
    x = 11,573.16

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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.