Home / 15,140.48-22,710.85-5,279.74

Finding the Fourth Proportional to 15,140.48, 22,710.85 and 5,279.74

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Solution

The fourth proportional to 15,140.48, 22,710.85 and 5,279.74 is: 7,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.48 : 22,710.85 = 5,279.74 : x
  2. Step 2: Convert to fraction form
    15,140.48/22,710.85 = 5,279.74/x
  3. Step 3: Cross multiply
    15,140.48x = 22,710.85 × 5,279.74
  4. Step 4: Simplify right side
    15,140.48x = 119,907,383.18
  5. Step 5: Solve for x
    x = 119,907,383.18/15,140.48
  6. Step 6: Final answer
    x = 7,919.66

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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.