Home / 8,981.60-12,395.52-5,003.36

Finding the Fourth Proportional to 8,981.60, 12,395.52 and 5,003.36

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Solution

The fourth proportional to 8,981.60, 12,395.52 and 5,003.36 is: 6,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.60 : 12,395.52 = 5,003.36 : x
  2. Step 2: Convert to fraction form
    8,981.60/12,395.52 = 5,003.36/x
  3. Step 3: Cross multiply
    8,981.60x = 12,395.52 × 5,003.36
  4. Step 4: Simplify right side
    8,981.60x = 62,019,248.95
  5. Step 5: Solve for x
    x = 62,019,248.95/8,981.60
  6. Step 6: Final answer
    x = 6,905.14

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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.