Home / 11,864.30-16,375.23-9,872.91

Finding the Fourth Proportional to 11,864.30, 16,375.23 and 9,872.91

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Solution

The fourth proportional to 11,864.30, 16,375.23 and 9,872.91 is: 13,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,864.30 : 16,375.23 = 9,872.91 : x
  2. Step 2: Convert to fraction form
    11,864.30/16,375.23 = 9,872.91/x
  3. Step 3: Cross multiply
    11,864.30x = 16,375.23 × 9,872.91
  4. Step 4: Simplify right side
    11,864.30x = 161,671,172.02
  5. Step 5: Solve for x
    x = 161,671,172.02/11,864.30
  6. Step 6: Final answer
    x = 13,626.70

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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.