Home / 15,338.73-21,166.90-8,624.74

Finding the Fourth Proportional to 15,338.73, 21,166.90 and 8,624.74

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Solution

The fourth proportional to 15,338.73, 21,166.90 and 8,624.74 is: 11,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.73 : 21,166.90 = 8,624.74 : x
  2. Step 2: Convert to fraction form
    15,338.73/21,166.90 = 8,624.74/x
  3. Step 3: Cross multiply
    15,338.73x = 21,166.90 × 8,624.74
  4. Step 4: Simplify right side
    15,338.73x = 182,559,046.35
  5. Step 5: Solve for x
    x = 182,559,046.35/15,338.73
  6. Step 6: Final answer
    x = 11,901.84

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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.