Home / 12,255.36-18,390.03-10,200.24

Finding the Fourth Proportional to 12,255.36, 18,390.03 and 10,200.24

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Solution

The fourth proportional to 12,255.36, 18,390.03 and 10,200.24 is: 15,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.36 : 18,390.03 = 10,200.24 : x
  2. Step 2: Convert to fraction form
    12,255.36/18,390.03 = 10,200.24/x
  3. Step 3: Cross multiply
    12,255.36x = 18,390.03 × 10,200.24
  4. Step 4: Simplify right side
    12,255.36x = 187,582,719.61
  5. Step 5: Solve for x
    x = 187,582,719.61/12,255.36
  6. Step 6: Final answer
    x = 15,306.18

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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.