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Finding the Fourth Proportional to 8,606.26, 12,885.06 and 5,478.52

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Solution

The fourth proportional to 8,606.26, 12,885.06 and 5,478.52 is: 8,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.26 : 12,885.06 = 5,478.52 : x
  2. Step 2: Convert to fraction form
    8,606.26/12,885.06 = 5,478.52/x
  3. Step 3: Cross multiply
    8,606.26x = 12,885.06 × 5,478.52
  4. Step 4: Simplify right side
    8,606.26x = 70,591,058.91
  5. Step 5: Solve for x
    x = 70,591,058.91/8,606.26
  6. Step 6: Final answer
    x = 8,202.29

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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.