Home / 12,144.13-18,209.47-4,244.53

Finding the Fourth Proportional to 12,144.13, 18,209.47 and 4,244.53

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Solution

The fourth proportional to 12,144.13, 18,209.47 and 4,244.53 is: 6,364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.13 : 18,209.47 = 4,244.53 : x
  2. Step 2: Convert to fraction form
    12,144.13/18,209.47 = 4,244.53/x
  3. Step 3: Cross multiply
    12,144.13x = 18,209.47 × 4,244.53
  4. Step 4: Simplify right side
    12,144.13x = 77,290,648.70
  5. Step 5: Solve for x
    x = 77,290,648.70/12,144.13
  6. Step 6: Final answer
    x = 6,364.45

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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.