Home / 8,972.76-12,377.16-5,831.04

Finding the Fourth Proportional to 8,972.76, 12,377.16 and 5,831.04

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Solution

The fourth proportional to 8,972.76, 12,377.16 and 5,831.04 is: 8,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.76 : 12,377.16 = 5,831.04 : x
  2. Step 2: Convert to fraction form
    8,972.76/12,377.16 = 5,831.04/x
  3. Step 3: Cross multiply
    8,972.76x = 12,377.16 × 5,831.04
  4. Step 4: Simplify right side
    8,972.76x = 72,171,715.05
  5. Step 5: Solve for x
    x = 72,171,715.05/8,972.76
  6. Step 6: Final answer
    x = 8,043.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.