Home / 15,207.93-20,983.14-9,239.85

Finding the Fourth Proportional to 15,207.93, 20,983.14 and 9,239.85

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Solution

The fourth proportional to 15,207.93, 20,983.14 and 9,239.85 is: 12,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.93 : 20,983.14 = 9,239.85 : x
  2. Step 2: Convert to fraction form
    15,207.93/20,983.14 = 9,239.85/x
  3. Step 3: Cross multiply
    15,207.93x = 20,983.14 × 9,239.85
  4. Step 4: Simplify right side
    15,207.93x = 193,881,066.13
  5. Step 5: Solve for x
    x = 193,881,066.13/15,207.93
  6. Step 6: Final answer
    x = 12,748.68

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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.