Home / 18,216.94-27,332.29-7,131.55

Finding the Fourth Proportional to 18,216.94, 27,332.29 and 7,131.55

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Solution

The fourth proportional to 18,216.94, 27,332.29 and 7,131.55 is: 10,700.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.94 : 27,332.29 = 7,131.55 : x
  2. Step 2: Convert to fraction form
    18,216.94/27,332.29 = 7,131.55/x
  3. Step 3: Cross multiply
    18,216.94x = 27,332.29 × 7,131.55
  4. Step 4: Simplify right side
    18,216.94x = 194,921,592.75
  5. Step 5: Solve for x
    x = 194,921,592.75/18,216.94
  6. Step 6: Final answer
    x = 10,700.02

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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.