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Finding the Fourth Proportional to 26,432.60, 39,648.90 and 9,787.10

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Solution

The fourth proportional to 26,432.60, 39,648.90 and 9,787.10 is: 14,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,432.60 : 39,648.90 = 9,787.10 : x
  2. Step 2: Convert to fraction form
    26,432.60/39,648.90 = 9,787.10/x
  3. Step 3: Cross multiply
    26,432.60x = 39,648.90 × 9,787.10
  4. Step 4: Simplify right side
    26,432.60x = 388,047,749.19
  5. Step 5: Solve for x
    x = 388,047,749.19/26,432.60
  6. Step 6: Final answer
    x = 14,680.65

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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.