Home / 12,687,709.38-17,508,569.90-6,886,366.94

Finding the Fourth Proportional to 12,687,709.38, 17,508,569.90 and 6,886,366.94

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Solution

The fourth proportional to 12,687,709.38, 17,508,569.90 and 6,886,366.94 is: 9,502,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,709.38 : 17,508,569.90 = 6,886,366.94 : x
  2. Step 2: Convert to fraction form
    12,687,709.38/17,508,569.90 = 6,886,366.94/x
  3. Step 3: Cross multiply
    12,687,709.38x = 17,508,569.90 × 6,886,366.94
  4. Step 4: Simplify right side
    12,687,709.38x = 120,570,436,926,039.11
  5. Step 5: Solve for x
    x = 120,570,436,926,039.11/12,687,709.38
  6. Step 6: Final answer
    x = 9,502,931.80

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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.