Home / 13,149.29-18,143.51-7,844.60

Finding the Fourth Proportional to 13,149.29, 18,143.51 and 7,844.60

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Solution

The fourth proportional to 13,149.29, 18,143.51 and 7,844.60 is: 10,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.29 : 18,143.51 = 7,844.60 : x
  2. Step 2: Convert to fraction form
    13,149.29/18,143.51 = 7,844.60/x
  3. Step 3: Cross multiply
    13,149.29x = 18,143.51 × 7,844.60
  4. Step 4: Simplify right side
    13,149.29x = 142,328,448.61
  5. Step 5: Solve for x
    x = 142,328,448.61/13,149.29
  6. Step 6: Final answer
    x = 10,824.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.