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Finding the Fourth Proportional to 8,065.68, 12,040.18 and 7,488.96

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Solution

The fourth proportional to 8,065.68, 12,040.18 and 7,488.96 is: 11,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.68 : 12,040.18 = 7,488.96 : x
  2. Step 2: Convert to fraction form
    8,065.68/12,040.18 = 7,488.96/x
  3. Step 3: Cross multiply
    8,065.68x = 12,040.18 × 7,488.96
  4. Step 4: Simplify right side
    8,065.68x = 90,168,426.41
  5. Step 5: Solve for x
    x = 90,168,426.41/8,065.68
  6. Step 6: Final answer
    x = 11,179.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.