Home / 14,455.76-21,666.38-7,439.14

Finding the Fourth Proportional to 14,455.76, 21,666.38 and 7,439.14

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Solution

The fourth proportional to 14,455.76, 21,666.38 and 7,439.14 is: 11,149.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.76 : 21,666.38 = 7,439.14 : x
  2. Step 2: Convert to fraction form
    14,455.76/21,666.38 = 7,439.14/x
  3. Step 3: Cross multiply
    14,455.76x = 21,666.38 × 7,439.14
  4. Step 4: Simplify right side
    14,455.76x = 161,179,234.11
  5. Step 5: Solve for x
    x = 161,179,234.11/14,455.76
  6. Step 6: Final answer
    x = 11,149.83

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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.