Home / 12,549.75-18,820.79-4,227.53

Finding the Fourth Proportional to 12,549.75, 18,820.79 and 4,227.53

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Solution

The fourth proportional to 12,549.75, 18,820.79 and 4,227.53 is: 6,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.75 : 18,820.79 = 4,227.53 : x
  2. Step 2: Convert to fraction form
    12,549.75/18,820.79 = 4,227.53/x
  3. Step 3: Cross multiply
    12,549.75x = 18,820.79 × 4,227.53
  4. Step 4: Simplify right side
    12,549.75x = 79,565,503.79
  5. Step 5: Solve for x
    x = 79,565,503.79/12,549.75
  6. Step 6: Final answer
    x = 6,340.01

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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.