Home / 8,528.76-12,792.13-2,981.68

Finding the Fourth Proportional to 8,528.76, 12,792.13 and 2,981.68

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Solution

The fourth proportional to 8,528.76, 12,792.13 and 2,981.68 is: 4,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.76 : 12,792.13 = 2,981.68 : x
  2. Step 2: Convert to fraction form
    8,528.76/12,792.13 = 2,981.68/x
  3. Step 3: Cross multiply
    8,528.76x = 12,792.13 × 2,981.68
  4. Step 4: Simplify right side
    8,528.76x = 38,141,998.74
  5. Step 5: Solve for x
    x = 38,141,998.74/8,528.76
  6. Step 6: Final answer
    x = 4,472.16

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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.