Home / 15,975.38-22,045.82-8,901.78

Finding the Fourth Proportional to 15,975.38, 22,045.82 and 8,901.78

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Solution

The fourth proportional to 15,975.38, 22,045.82 and 8,901.78 is: 12,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,975.38 : 22,045.82 = 8,901.78 : x
  2. Step 2: Convert to fraction form
    15,975.38/22,045.82 = 8,901.78/x
  3. Step 3: Cross multiply
    15,975.38x = 22,045.82 × 8,901.78
  4. Step 4: Simplify right side
    15,975.38x = 196,246,995.05
  5. Step 5: Solve for x
    x = 196,246,995.05/15,975.38
  6. Step 6: Final answer
    x = 12,284.34

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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.