Home / 15,945.24-22,000.34-8,870.28

Finding the Fourth Proportional to 15,945.24, 22,000.34 and 8,870.28

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Solution

The fourth proportional to 15,945.24, 22,000.34 and 8,870.28 is: 12,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.24 : 22,000.34 = 8,870.28 : x
  2. Step 2: Convert to fraction form
    15,945.24/22,000.34 = 8,870.28/x
  3. Step 3: Cross multiply
    15,945.24x = 22,000.34 × 8,870.28
  4. Step 4: Simplify right side
    15,945.24x = 195,149,175.90
  5. Step 5: Solve for x
    x = 195,149,175.90/15,945.24
  6. Step 6: Final answer
    x = 12,238.71

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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.