Home / 15,945.86-22,005.26-8,872.12

Finding the Fourth Proportional to 15,945.86, 22,005.26 and 8,872.12

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Solution

The fourth proportional to 15,945.86, 22,005.26 and 8,872.12 is: 12,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.86 : 22,005.26 = 8,872.12 : x
  2. Step 2: Convert to fraction form
    15,945.86/22,005.26 = 8,872.12/x
  3. Step 3: Cross multiply
    15,945.86x = 22,005.26 × 8,872.12
  4. Step 4: Simplify right side
    15,945.86x = 195,233,307.35
  5. Step 5: Solve for x
    x = 195,233,307.35/15,945.86
  6. Step 6: Final answer
    x = 12,243.51

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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.