Home / 10,785.30-16,115.04-7,962.18

Finding the Fourth Proportional to 10,785.30, 16,115.04 and 7,962.18

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Solution

The fourth proportional to 10,785.30, 16,115.04 and 7,962.18 is: 11,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.30 : 16,115.04 = 7,962.18 : x
  2. Step 2: Convert to fraction form
    10,785.30/16,115.04 = 7,962.18/x
  3. Step 3: Cross multiply
    10,785.30x = 16,115.04 × 7,962.18
  4. Step 4: Simplify right side
    10,785.30x = 128,310,849.19
  5. Step 5: Solve for x
    x = 128,310,849.19/10,785.30
  6. Step 6: Final answer
    x = 11,896.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.