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Finding the Fourth Proportional to 8,981.84, 12,400.08 and 6,002.72

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Solution

The fourth proportional to 8,981.84, 12,400.08 and 6,002.72 is: 8,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.84 : 12,400.08 = 6,002.72 : x
  2. Step 2: Convert to fraction form
    8,981.84/12,400.08 = 6,002.72/x
  3. Step 3: Cross multiply
    8,981.84x = 12,400.08 × 6,002.72
  4. Step 4: Simplify right side
    8,981.84x = 74,434,208.22
  5. Step 5: Solve for x
    x = 74,434,208.22/8,981.84
  6. Step 6: Final answer
    x = 8,287.19

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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.