Home / 8,949.36-12,350.88-4,971.12

Finding the Fourth Proportional to 8,949.36, 12,350.88 and 4,971.12

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Solution

The fourth proportional to 8,949.36, 12,350.88 and 4,971.12 is: 6,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.36 : 12,350.88 = 4,971.12 : x
  2. Step 2: Convert to fraction form
    8,949.36/12,350.88 = 4,971.12/x
  3. Step 3: Cross multiply
    8,949.36x = 12,350.88 × 4,971.12
  4. Step 4: Simplify right side
    8,949.36x = 61,397,706.59
  5. Step 5: Solve for x
    x = 61,397,706.59/8,949.36
  6. Step 6: Final answer
    x = 6,860.57

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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.