Home / 12,687,482-17,508,744.40-6,886,265.86

Finding the Fourth Proportional to 12,687,482, 17,508,744.40 and 6,886,265.86

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Solution

The fourth proportional to 12,687,482, 17,508,744.40 and 6,886,265.86 is: 9,503,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,482 : 17,508,744.40 = 6,886,265.86 : x
  2. Step 2: Convert to fraction form
    12,687,482/17,508,744.40 = 6,886,265.86/x
  3. Step 3: Cross multiply
    12,687,482x = 17,508,744.40 × 6,886,265.86
  4. Step 4: Simplify right side
    12,687,482x = 120,569,868,813,186.17
  5. Step 5: Solve for x
    x = 120,569,868,813,186.17/12,687,482
  6. Step 6: Final answer
    x = 9,503,057.33

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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.