Home / 16,178.50-22,326.87-9,889.66

Finding the Fourth Proportional to 16,178.50, 22,326.87 and 9,889.66

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Solution

The fourth proportional to 16,178.50, 22,326.87 and 9,889.66 is: 13,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,178.50 : 22,326.87 = 9,889.66 : x
  2. Step 2: Convert to fraction form
    16,178.50/22,326.87 = 9,889.66/x
  3. Step 3: Cross multiply
    16,178.50x = 22,326.87 × 9,889.66
  4. Step 4: Simplify right side
    16,178.50x = 220,805,153.16
  5. Step 5: Solve for x
    x = 220,805,153.16/16,178.50
  6. Step 6: Final answer
    x = 13,648.06

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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.