Home / 15,188.90-20,959.22-9,223.83

Finding the Fourth Proportional to 15,188.90, 20,959.22 and 9,223.83

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Solution

The fourth proportional to 15,188.90, 20,959.22 and 9,223.83 is: 12,728.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.90 : 20,959.22 = 9,223.83 : x
  2. Step 2: Convert to fraction form
    15,188.90/20,959.22 = 9,223.83/x
  3. Step 3: Cross multiply
    15,188.90x = 20,959.22 × 9,223.83
  4. Step 4: Simplify right side
    15,188.90x = 193,324,305.27
  5. Step 5: Solve for x
    x = 193,324,305.27/15,188.90
  6. Step 6: Final answer
    x = 12,728.00

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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.