Home / 15,140.55-22,710.95-5,279.84

Finding the Fourth Proportional to 15,140.55, 22,710.95 and 5,279.84

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Solution

The fourth proportional to 15,140.55, 22,710.95 and 5,279.84 is: 7,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.55 : 22,710.95 = 5,279.84 : x
  2. Step 2: Convert to fraction form
    15,140.55/22,710.95 = 5,279.84/x
  3. Step 3: Cross multiply
    15,140.55x = 22,710.95 × 5,279.84
  4. Step 4: Simplify right side
    15,140.55x = 119,910,275.01
  5. Step 5: Solve for x
    x = 119,910,275.01/15,140.55
  6. Step 6: Final answer
    x = 7,919.81

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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.