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Finding the Fourth Proportional to 26,520.60, 39,787.08 and 9,880.68

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Solution

The fourth proportional to 26,520.60, 39,787.08 and 9,880.68 is: 14,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,520.60 : 39,787.08 = 9,880.68 : x
  2. Step 2: Convert to fraction form
    26,520.60/39,787.08 = 9,880.68/x
  3. Step 3: Cross multiply
    26,520.60x = 39,787.08 × 9,880.68
  4. Step 4: Simplify right side
    26,520.60x = 393,123,405.61
  5. Step 5: Solve for x
    x = 393,123,405.61/26,520.60
  6. Step 6: Final answer
    x = 14,823.32

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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.