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Finding the Fourth Proportional to 15,671.68, 23,485.42 and 8,654.85

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Solution

The fourth proportional to 15,671.68, 23,485.42 and 8,654.85 is: 12,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.68 : 23,485.42 = 8,654.85 : x
  2. Step 2: Convert to fraction form
    15,671.68/23,485.42 = 8,654.85/x
  3. Step 3: Cross multiply
    15,671.68x = 23,485.42 × 8,654.85
  4. Step 4: Simplify right side
    15,671.68x = 203,262,787.29
  5. Step 5: Solve for x
    x = 203,262,787.29/15,671.68
  6. Step 6: Final answer
    x = 12,970.07

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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.