Home / 18,120.11-25,008.48-11,050.63

Finding the Fourth Proportional to 18,120.11, 25,008.48 and 11,050.63

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Solution

The fourth proportional to 18,120.11, 25,008.48 and 11,050.63 is: 15,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.11 : 25,008.48 = 11,050.63 : x
  2. Step 2: Convert to fraction form
    18,120.11/25,008.48 = 11,050.63/x
  3. Step 3: Cross multiply
    18,120.11x = 25,008.48 × 11,050.63
  4. Step 4: Simplify right side
    18,120.11x = 276,359,459.34
  5. Step 5: Solve for x
    x = 276,359,459.34/18,120.11
  6. Step 6: Final answer
    x = 15,251.53

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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.