Home / 15,143.47-22,708.73-5,279.83

Finding the Fourth Proportional to 15,143.47, 22,708.73 and 5,279.83

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Solution

The fourth proportional to 15,143.47, 22,708.73 and 5,279.83 is: 7,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.47 : 22,708.73 = 5,279.83 : x
  2. Step 2: Convert to fraction form
    15,143.47/22,708.73 = 5,279.83/x
  3. Step 3: Cross multiply
    15,143.47x = 22,708.73 × 5,279.83
  4. Step 4: Simplify right side
    15,143.47x = 119,898,207.52
  5. Step 5: Solve for x
    x = 119,898,207.52/15,143.47
  6. Step 6: Final answer
    x = 7,917.49

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1.5x scale

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.