Home / 11,437.53-17,162.18-8,663.28

Finding the Fourth Proportional to 11,437.53, 17,162.18 and 8,663.28

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Solution

The fourth proportional to 11,437.53, 17,162.18 and 8,663.28 is: 12,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.53 : 17,162.18 = 8,663.28 : x
  2. Step 2: Convert to fraction form
    11,437.53/17,162.18 = 8,663.28/x
  3. Step 3: Cross multiply
    11,437.53x = 17,162.18 × 8,663.28
  4. Step 4: Simplify right side
    11,437.53x = 148,680,727.43
  5. Step 5: Solve for x
    x = 148,680,727.43/11,437.53
  6. Step 6: Final answer
    x = 12,999.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.