Home / 15,585.54-21,508.92-8,512.62

Finding the Fourth Proportional to 15,585.54, 21,508.92 and 8,512.62

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Solution

The fourth proportional to 15,585.54, 21,508.92 and 8,512.62 is: 11,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.54 : 21,508.92 = 8,512.62 : x
  2. Step 2: Convert to fraction form
    15,585.54/21,508.92 = 8,512.62/x
  3. Step 3: Cross multiply
    15,585.54x = 21,508.92 × 8,512.62
  4. Step 4: Simplify right side
    15,585.54x = 183,097,262.57
  5. Step 5: Solve for x
    x = 183,097,262.57/15,585.54
  6. Step 6: Final answer
    x = 11,747.89

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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.