Home / 12,609.15-17,402.90-7,306.89

Finding the Fourth Proportional to 12,609.15, 17,402.90 and 7,306.89

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Solution

The fourth proportional to 12,609.15, 17,402.90 and 7,306.89 is: 10,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.15 : 17,402.90 = 7,306.89 : x
  2. Step 2: Convert to fraction form
    12,609.15/17,402.90 = 7,306.89/x
  3. Step 3: Cross multiply
    12,609.15x = 17,402.90 × 7,306.89
  4. Step 4: Simplify right side
    12,609.15x = 127,161,039.45
  5. Step 5: Solve for x
    x = 127,161,039.45/12,609.15
  6. Step 6: Final answer
    x = 10,084.82

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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.