Home / 15,338.49-21,167.78-8,624.00

Finding the Fourth Proportional to 15,338.49, 21,167.78 and 8,624.00

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Solution

The fourth proportional to 15,338.49, 21,167.78 and 8,624.00 is: 11,901.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.49 : 21,167.78 = 8,624.00 : x
  2. Step 2: Convert to fraction form
    15,338.49/21,167.78 = 8,624.00/x
  3. Step 3: Cross multiply
    15,338.49x = 21,167.78 × 8,624.00
  4. Step 4: Simplify right side
    15,338.49x = 182,550,785.76
  5. Step 5: Solve for x
    x = 182,550,785.76/15,338.49
  6. Step 6: Final answer
    x = 11,901.48

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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.