Home / 15,943.56-22,001.46-8,869.50

Finding the Fourth Proportional to 15,943.56, 22,001.46 and 8,869.50

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Solution

The fourth proportional to 15,943.56, 22,001.46 and 8,869.50 is: 12,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.56 : 22,001.46 = 8,869.50 : x
  2. Step 2: Convert to fraction form
    15,943.56/22,001.46 = 8,869.50/x
  3. Step 3: Cross multiply
    15,943.56x = 22,001.46 × 8,869.50
  4. Step 4: Simplify right side
    15,943.56x = 195,141,949.47
  5. Step 5: Solve for x
    x = 195,141,949.47/15,943.56
  6. Step 6: Final answer
    x = 12,239.55

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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.