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Finding the Fourth Proportional to 8,444.54, 12,666.81 and 5,151.05

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Solution

The fourth proportional to 8,444.54, 12,666.81 and 5,151.05 is: 7,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,444.54 : 12,666.81 = 5,151.05 : x
  2. Step 2: Convert to fraction form
    8,444.54/12,666.81 = 5,151.05/x
  3. Step 3: Cross multiply
    8,444.54x = 12,666.81 × 5,151.05
  4. Step 4: Simplify right side
    8,444.54x = 65,247,371.65
  5. Step 5: Solve for x
    x = 65,247,371.65/8,444.54
  6. Step 6: Final answer
    x = 7,726.58

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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.