Home / 12,270.80-18,393.24-5,344.40

Finding the Fourth Proportional to 12,270.80, 18,393.24 and 5,344.40

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Solution

The fourth proportional to 12,270.80, 18,393.24 and 5,344.40 is: 8,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.80 : 18,393.24 = 5,344.40 : x
  2. Step 2: Convert to fraction form
    12,270.80/18,393.24 = 5,344.40/x
  3. Step 3: Cross multiply
    12,270.80x = 18,393.24 × 5,344.40
  4. Step 4: Simplify right side
    12,270.80x = 98,300,831.86
  5. Step 5: Solve for x
    x = 98,300,831.86/12,270.80
  6. Step 6: Final answer
    x = 8,010.96

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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.