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Finding the Fourth Proportional to 8,719.44, 13,077.78 and 7,248.12

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Solution

The fourth proportional to 8,719.44, 13,077.78 and 7,248.12 is: 10,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.44 : 13,077.78 = 7,248.12 : x
  2. Step 2: Convert to fraction form
    8,719.44/13,077.78 = 7,248.12/x
  3. Step 3: Cross multiply
    8,719.44x = 13,077.78 × 7,248.12
  4. Step 4: Simplify right side
    8,719.44x = 94,789,318.77
  5. Step 5: Solve for x
    x = 94,789,318.77/8,719.44
  6. Step 6: Final answer
    x = 10,871.03

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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.