Home / 14,390.28-21,583.53-5,631.39

Finding the Fourth Proportional to 14,390.28, 21,583.53 and 5,631.39

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Solution

The fourth proportional to 14,390.28, 21,583.53 and 5,631.39 is: 8,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.28 : 21,583.53 = 5,631.39 : x
  2. Step 2: Convert to fraction form
    14,390.28/21,583.53 = 5,631.39/x
  3. Step 3: Cross multiply
    14,390.28x = 21,583.53 × 5,631.39
  4. Step 4: Simplify right side
    14,390.28x = 121,545,275.01
  5. Step 5: Solve for x
    x = 121,545,275.01/14,390.28
  6. Step 6: Final answer
    x = 8,446.35

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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.