Home / 12,475.54-18,722.22-9,197.20

Finding the Fourth Proportional to 12,475.54, 18,722.22 and 9,197.20

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Solution

The fourth proportional to 12,475.54, 18,722.22 and 9,197.20 is: 13,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.54 : 18,722.22 = 9,197.20 : x
  2. Step 2: Convert to fraction form
    12,475.54/18,722.22 = 9,197.20/x
  3. Step 3: Cross multiply
    12,475.54x = 18,722.22 × 9,197.20
  4. Step 4: Simplify right side
    12,475.54x = 172,192,001.78
  5. Step 5: Solve for x
    x = 172,192,001.78/12,475.54
  6. Step 6: Final answer
    x = 13,802.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.