Home / 14,321.55-21,456.90-5,983.21

Finding the Fourth Proportional to 14,321.55, 21,456.90 and 5,983.21

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Solution

The fourth proportional to 14,321.55, 21,456.90 and 5,983.21 is: 8,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.55 : 21,456.90 = 5,983.21 : x
  2. Step 2: Convert to fraction form
    14,321.55/21,456.90 = 5,983.21/x
  3. Step 3: Cross multiply
    14,321.55x = 21,456.90 × 5,983.21
  4. Step 4: Simplify right side
    14,321.55x = 128,381,138.65
  5. Step 5: Solve for x
    x = 128,381,138.65/14,321.55
  6. Step 6: Final answer
    x = 8,964.19

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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.