Home / 14,321.92-21,462.72-11,387.20

Finding the Fourth Proportional to 14,321.92, 21,462.72 and 11,387.20

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Solution

The fourth proportional to 14,321.92, 21,462.72 and 11,387.20 is: 17,064.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.92 : 21,462.72 = 11,387.20 : x
  2. Step 2: Convert to fraction form
    14,321.92/21,462.72 = 11,387.20/x
  3. Step 3: Cross multiply
    14,321.92x = 21,462.72 × 11,387.20
  4. Step 4: Simplify right side
    14,321.92x = 244,400,285.18
  5. Step 5: Solve for x
    x = 244,400,285.18/14,321.92
  6. Step 6: Final answer
    x = 17,064.77

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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.