Home / 11,869.74-16,381.85-6,834.78

Finding the Fourth Proportional to 11,869.74, 16,381.85 and 6,834.78

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Solution

The fourth proportional to 11,869.74, 16,381.85 and 6,834.78 is: 9,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.74 : 16,381.85 = 6,834.78 : x
  2. Step 2: Convert to fraction form
    11,869.74/16,381.85 = 6,834.78/x
  3. Step 3: Cross multiply
    11,869.74x = 16,381.85 × 6,834.78
  4. Step 4: Simplify right side
    11,869.74x = 111,966,306.57
  5. Step 5: Solve for x
    x = 111,966,306.57/11,869.74
  6. Step 6: Final answer
    x = 9,432.92

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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.