Home / 8,854.28-12,218.94-5,317.55

Finding the Fourth Proportional to 8,854.28, 12,218.94 and 5,317.55

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Solution

The fourth proportional to 8,854.28, 12,218.94 and 5,317.55 is: 7,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.28 : 12,218.94 = 5,317.55 : x
  2. Step 2: Convert to fraction form
    8,854.28/12,218.94 = 5,317.55/x
  3. Step 3: Cross multiply
    8,854.28x = 12,218.94 × 5,317.55
  4. Step 4: Simplify right side
    8,854.28x = 64,974,736.71
  5. Step 5: Solve for x
    x = 64,974,736.71/8,854.28
  6. Step 6: Final answer
    x = 7,338.23

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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.