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Finding the Fourth Proportional to 8,991.84, 13,479.48 and 6,071.16

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Solution

The fourth proportional to 8,991.84, 13,479.48 and 6,071.16 is: 9,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.84 : 13,479.48 = 6,071.16 : x
  2. Step 2: Convert to fraction form
    8,991.84/13,479.48 = 6,071.16/x
  3. Step 3: Cross multiply
    8,991.84x = 13,479.48 × 6,071.16
  4. Step 4: Simplify right side
    8,991.84x = 81,836,079.80
  5. Step 5: Solve for x
    x = 81,836,079.80/8,991.84
  6. Step 6: Final answer
    x = 9,101.15

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1.5x scale

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.