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Finding the Fourth Proportional to 26,630.70, 39,947.06 and 8,862.94

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Solution

The fourth proportional to 26,630.70, 39,947.06 and 8,862.94 is: 13,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,630.70 : 39,947.06 = 8,862.94 : x
  2. Step 2: Convert to fraction form
    26,630.70/39,947.06 = 8,862.94/x
  3. Step 3: Cross multiply
    26,630.70x = 39,947.06 × 8,862.94
  4. Step 4: Simplify right side
    26,630.70x = 354,048,395.96
  5. Step 5: Solve for x
    x = 354,048,395.96/26,630.70
  6. Step 6: Final answer
    x = 13,294.75

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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.