Home / 15,400.65-21,252.78-8,327.10

Finding the Fourth Proportional to 15,400.65, 21,252.78 and 8,327.10

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Solution

The fourth proportional to 15,400.65, 21,252.78 and 8,327.10 is: 11,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.65 : 21,252.78 = 8,327.10 : x
  2. Step 2: Convert to fraction form
    15,400.65/21,252.78 = 8,327.10/x
  3. Step 3: Cross multiply
    15,400.65x = 21,252.78 × 8,327.10
  4. Step 4: Simplify right side
    15,400.65x = 176,974,024.34
  5. Step 5: Solve for x
    x = 176,974,024.34/15,400.65
  6. Step 6: Final answer
    x = 11,491.33

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.