Home / 10,276.48-15,414.72-5,077.12

Finding the Fourth Proportional to 10,276.48, 15,414.72 and 5,077.12

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Solution

The fourth proportional to 10,276.48, 15,414.72 and 5,077.12 is: 7,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.48 : 15,414.72 = 5,077.12 : x
  2. Step 2: Convert to fraction form
    10,276.48/15,414.72 = 5,077.12/x
  3. Step 3: Cross multiply
    10,276.48x = 15,414.72 × 5,077.12
  4. Step 4: Simplify right side
    10,276.48x = 78,262,383.21
  5. Step 5: Solve for x
    x = 78,262,383.21/10,276.48
  6. Step 6: Final answer
    x = 7,615.68

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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.