Home / 15,760.67-21,753.90-9,305.96

Finding the Fourth Proportional to 15,760.67, 21,753.90 and 9,305.96

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Solution

The fourth proportional to 15,760.67, 21,753.90 and 9,305.96 is: 12,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,760.67 : 21,753.90 = 9,305.96 : x
  2. Step 2: Convert to fraction form
    15,760.67/21,753.90 = 9,305.96/x
  3. Step 3: Cross multiply
    15,760.67x = 21,753.90 × 9,305.96
  4. Step 4: Simplify right side
    15,760.67x = 202,440,814.47
  5. Step 5: Solve for x
    x = 202,440,814.47/15,760.67
  6. Step 6: Final answer
    x = 12,844.69

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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.