Home / 8,954.80-12,356.25-5,177.23

Finding the Fourth Proportional to 8,954.80, 12,356.25 and 5,177.23

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Solution

The fourth proportional to 8,954.80, 12,356.25 and 5,177.23 is: 7,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.80 : 12,356.25 = 5,177.23 : x
  2. Step 2: Convert to fraction form
    8,954.80/12,356.25 = 5,177.23/x
  3. Step 3: Cross multiply
    8,954.80x = 12,356.25 × 5,177.23
  4. Step 4: Simplify right side
    8,954.80x = 63,971,148.19
  5. Step 5: Solve for x
    x = 63,971,148.19/8,954.80
  6. Step 6: Final answer
    x = 7,143.78

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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.