Home / 18,178.40-27,268.22-5,031.76

Finding the Fourth Proportional to 18,178.40, 27,268.22 and 5,031.76

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Solution

The fourth proportional to 18,178.40, 27,268.22 and 5,031.76 is: 7,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.40 : 27,268.22 = 5,031.76 : x
  2. Step 2: Convert to fraction form
    18,178.40/27,268.22 = 5,031.76/x
  3. Step 3: Cross multiply
    18,178.40x = 27,268.22 × 5,031.76
  4. Step 4: Simplify right side
    18,178.40x = 137,207,138.67
  5. Step 5: Solve for x
    x = 137,207,138.67/18,178.40
  6. Step 6: Final answer
    x = 7,547.81

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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.