Home / 18,119.12-24,992.88-13,090.74

Finding the Fourth Proportional to 18,119.12, 24,992.88 and 13,090.74

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Solution

The fourth proportional to 18,119.12, 24,992.88 and 13,090.74 is: 18,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.12 : 24,992.88 = 13,090.74 : x
  2. Step 2: Convert to fraction form
    18,119.12/24,992.88 = 13,090.74/x
  3. Step 3: Cross multiply
    18,119.12x = 24,992.88 × 13,090.74
  4. Step 4: Simplify right side
    18,119.12x = 327,175,293.93
  5. Step 5: Solve for x
    x = 327,175,293.93/18,119.12
  6. Step 6: Final answer
    x = 18,056.91

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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.