Home / 8,925.40-13,391.32-5,422.56

Finding the Fourth Proportional to 8,925.40, 13,391.32 and 5,422.56

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Solution

The fourth proportional to 8,925.40, 13,391.32 and 5,422.56 is: 8,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.40 : 13,391.32 = 5,422.56 : x
  2. Step 2: Convert to fraction form
    8,925.40/13,391.32 = 5,422.56/x
  3. Step 3: Cross multiply
    8,925.40x = 13,391.32 × 5,422.56
  4. Step 4: Simplify right side
    8,925.40x = 72,615,236.18
  5. Step 5: Solve for x
    x = 72,615,236.18/8,925.40
  6. Step 6: Final answer
    x = 8,135.80

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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.