Home / 15,140.38-22,710.37-5,279.63

Finding the Fourth Proportional to 15,140.38, 22,710.37 and 5,279.63

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Solution

The fourth proportional to 15,140.38, 22,710.37 and 5,279.63 is: 7,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.38 : 22,710.37 = 5,279.63 : x
  2. Step 2: Convert to fraction form
    15,140.38/22,710.37 = 5,279.63/x
  3. Step 3: Cross multiply
    15,140.38x = 22,710.37 × 5,279.63
  4. Step 4: Simplify right side
    15,140.38x = 119,902,219.06
  5. Step 5: Solve for x
    x = 119,902,219.06/15,140.38
  6. Step 6: Final answer
    x = 7,919.37

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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.