Home / 15,074.16-20,801.56-8,359.72

Finding the Fourth Proportional to 15,074.16, 20,801.56 and 8,359.72

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Solution

The fourth proportional to 15,074.16, 20,801.56 and 8,359.72 is: 11,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.16 : 20,801.56 = 8,359.72 : x
  2. Step 2: Convert to fraction form
    15,074.16/20,801.56 = 8,359.72/x
  3. Step 3: Cross multiply
    15,074.16x = 20,801.56 × 8,359.72
  4. Step 4: Simplify right side
    15,074.16x = 173,895,217.16
  5. Step 5: Solve for x
    x = 173,895,217.16/15,074.16
  6. Step 6: Final answer
    x = 11,535.98

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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.