Home / 8,988.44-13,469.70-5,084.78

Finding the Fourth Proportional to 8,988.44, 13,469.70 and 5,084.78

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Solution

The fourth proportional to 8,988.44, 13,469.70 and 5,084.78 is: 7,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.44 : 13,469.70 = 5,084.78 : x
  2. Step 2: Convert to fraction form
    8,988.44/13,469.70 = 5,084.78/x
  3. Step 3: Cross multiply
    8,988.44x = 13,469.70 × 5,084.78
  4. Step 4: Simplify right side
    8,988.44x = 68,490,461.17
  5. Step 5: Solve for x
    x = 68,490,461.17/8,988.44
  6. Step 6: Final answer
    x = 7,619.84

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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.