Home / 14,393.92-21,586-5,631.36

Finding the Fourth Proportional to 14,393.92, 21,586 and 5,631.36

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Solution

The fourth proportional to 14,393.92, 21,586 and 5,631.36 is: 8,445.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.92 : 21,586 = 5,631.36 : x
  2. Step 2: Convert to fraction form
    14,393.92/21,586 = 5,631.36/x
  3. Step 3: Cross multiply
    14,393.92x = 21,586 × 5,631.36
  4. Step 4: Simplify right side
    14,393.92x = 121,558,536.96
  5. Step 5: Solve for x
    x = 121,558,536.96/14,393.92
  6. Step 6: Final answer
    x = 8,445.13

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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.