Home / 15,189.40-20,959.91-9,224.33

Finding the Fourth Proportional to 15,189.40, 20,959.91 and 9,224.33

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Solution

The fourth proportional to 15,189.40, 20,959.91 and 9,224.33 is: 12,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189.40 : 20,959.91 = 9,224.33 : x
  2. Step 2: Convert to fraction form
    15,189.40/20,959.91 = 9,224.33/x
  3. Step 3: Cross multiply
    15,189.40x = 20,959.91 × 9,224.33
  4. Step 4: Simplify right side
    15,189.40x = 193,341,126.61
  5. Step 5: Solve for x
    x = 193,341,126.61/15,189.40
  6. Step 6: Final answer
    x = 12,728.69

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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.