Home / 15,886.52-23,815.20-7,116.65

Finding the Fourth Proportional to 15,886.52, 23,815.20 and 7,116.65

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Solution

The fourth proportional to 15,886.52, 23,815.20 and 7,116.65 is: 10,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.52 : 23,815.20 = 7,116.65 : x
  2. Step 2: Convert to fraction form
    15,886.52/23,815.20 = 7,116.65/x
  3. Step 3: Cross multiply
    15,886.52x = 23,815.20 × 7,116.65
  4. Step 4: Simplify right side
    15,886.52x = 169,484,443.08
  5. Step 5: Solve for x
    x = 169,484,443.08/15,886.52
  6. Step 6: Final answer
    x = 10,668.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.