Home / 15,707-23,566.56-5,318.72

Finding the Fourth Proportional to 15,707, 23,566.56 and 5,318.72

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Solution

The fourth proportional to 15,707, 23,566.56 and 5,318.72 is: 7,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707 : 23,566.56 = 5,318.72 : x
  2. Step 2: Convert to fraction form
    15,707/23,566.56 = 5,318.72/x
  3. Step 3: Cross multiply
    15,707x = 23,566.56 × 5,318.72
  4. Step 4: Simplify right side
    15,707x = 125,343,934.00
  5. Step 5: Solve for x
    x = 125,343,934.00/15,707
  6. Step 6: Final answer
    x = 7,980.13

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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.