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Finding the Fourth Proportional to 8,654.44, 12,970.38 and 3,972.76

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Solution

The fourth proportional to 8,654.44, 12,970.38 and 3,972.76 is: 5,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.44 : 12,970.38 = 3,972.76 : x
  2. Step 2: Convert to fraction form
    8,654.44/12,970.38 = 3,972.76/x
  3. Step 3: Cross multiply
    8,654.44x = 12,970.38 × 3,972.76
  4. Step 4: Simplify right side
    8,654.44x = 51,528,206.85
  5. Step 5: Solve for x
    x = 51,528,206.85/8,654.44
  6. Step 6: Final answer
    x = 5,953.96

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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.