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Finding the Fourth Proportional to 8,480.61, 12,726.99 and 6,282.72

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Solution

The fourth proportional to 8,480.61, 12,726.99 and 6,282.72 is: 9,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.61 : 12,726.99 = 6,282.72 : x
  2. Step 2: Convert to fraction form
    8,480.61/12,726.99 = 6,282.72/x
  3. Step 3: Cross multiply
    8,480.61x = 12,726.99 × 6,282.72
  4. Step 4: Simplify right side
    8,480.61x = 79,960,114.61
  5. Step 5: Solve for x
    x = 79,960,114.61/8,480.61
  6. Step 6: Final answer
    x = 9,428.58

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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.