Home / 15,338.76-21,167.73-9,051.14

Finding the Fourth Proportional to 15,338.76, 21,167.73 and 9,051.14

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Solution

The fourth proportional to 15,338.76, 21,167.73 and 9,051.14 is: 12,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.76 : 21,167.73 = 9,051.14 : x
  2. Step 2: Convert to fraction form
    15,338.76/21,167.73 = 9,051.14/x
  3. Step 3: Cross multiply
    15,338.76x = 21,167.73 × 9,051.14
  4. Step 4: Simplify right side
    15,338.76x = 191,591,981.87
  5. Step 5: Solve for x
    x = 191,591,981.87/15,338.76
  6. Step 6: Final answer
    x = 12,490.71

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Half scale
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Double scale
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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.