Home / 15,134.12-20,884.98-8,328.56

Finding the Fourth Proportional to 15,134.12, 20,884.98 and 8,328.56

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Solution

The fourth proportional to 15,134.12, 20,884.98 and 8,328.56 is: 11,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.12 : 20,884.98 = 8,328.56 : x
  2. Step 2: Convert to fraction form
    15,134.12/20,884.98 = 8,328.56/x
  3. Step 3: Cross multiply
    15,134.12x = 20,884.98 × 8,328.56
  4. Step 4: Simplify right side
    15,134.12x = 173,941,704.60
  5. Step 5: Solve for x
    x = 173,941,704.60/15,134.12
  6. Step 6: Final answer
    x = 11,493.35

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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.