Home / 15,939.57-21,995.25-9,225.62

Finding the Fourth Proportional to 15,939.57, 21,995.25 and 9,225.62

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Solution

The fourth proportional to 15,939.57, 21,995.25 and 9,225.62 is: 12,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.57 : 21,995.25 = 9,225.62 : x
  2. Step 2: Convert to fraction form
    15,939.57/21,995.25 = 9,225.62/x
  3. Step 3: Cross multiply
    15,939.57x = 21,995.25 × 9,225.62
  4. Step 4: Simplify right side
    15,939.57x = 202,919,708.33
  5. Step 5: Solve for x
    x = 202,919,708.33/15,939.57
  6. Step 6: Final answer
    x = 12,730.56

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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.