Home / 8,529.15-12,736.17-6,972.21

Finding the Fourth Proportional to 8,529.15, 12,736.17 and 6,972.21

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Solution

The fourth proportional to 8,529.15, 12,736.17 and 6,972.21 is: 10,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.15 : 12,736.17 = 6,972.21 : x
  2. Step 2: Convert to fraction form
    8,529.15/12,736.17 = 6,972.21/x
  3. Step 3: Cross multiply
    8,529.15x = 12,736.17 × 6,972.21
  4. Step 4: Simplify right side
    8,529.15x = 88,799,251.84
  5. Step 5: Solve for x
    x = 88,799,251.84/8,529.15
  6. Step 6: Final answer
    x = 10,411.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.