Home / 11,077.84-15,279.24-8,254.72

Finding the Fourth Proportional to 11,077.84, 15,279.24 and 8,254.72

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Solution

The fourth proportional to 11,077.84, 15,279.24 and 8,254.72 is: 11,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.84 : 15,279.24 = 8,254.72 : x
  2. Step 2: Convert to fraction form
    11,077.84/15,279.24 = 8,254.72/x
  3. Step 3: Cross multiply
    11,077.84x = 15,279.24 × 8,254.72
  4. Step 4: Simplify right side
    11,077.84x = 126,125,848.01
  5. Step 5: Solve for x
    x = 126,125,848.01/11,077.84
  6. Step 6: Final answer
    x = 11,385.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.