Home / 16,042.08-22,138.56-8,969.76

Finding the Fourth Proportional to 16,042.08, 22,138.56 and 8,969.76

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Solution

The fourth proportional to 16,042.08, 22,138.56 and 8,969.76 is: 12,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,042.08 : 22,138.56 = 8,969.76 : x
  2. Step 2: Convert to fraction form
    16,042.08/22,138.56 = 8,969.76/x
  3. Step 3: Cross multiply
    16,042.08x = 22,138.56 × 8,969.76
  4. Step 4: Simplify right side
    16,042.08x = 198,577,569.95
  5. Step 5: Solve for x
    x = 198,577,569.95/16,042.08
  6. Step 6: Final answer
    x = 12,378.54

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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.