Home / 15,397.96-21,246.44-9,108.04

Finding the Fourth Proportional to 15,397.96, 21,246.44 and 9,108.04

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Solution

The fourth proportional to 15,397.96, 21,246.44 and 9,108.04 is: 12,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.96 : 21,246.44 = 9,108.04 : x
  2. Step 2: Convert to fraction form
    15,397.96/21,246.44 = 9,108.04/x
  3. Step 3: Cross multiply
    15,397.96x = 21,246.44 × 9,108.04
  4. Step 4: Simplify right side
    15,397.96x = 193,513,425.38
  5. Step 5: Solve for x
    x = 193,513,425.38/15,397.96
  6. Step 6: Final answer
    x = 12,567.47

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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.