Home / 18,178.01-25,089.71-11,108.53

Finding the Fourth Proportional to 18,178.01, 25,089.71 and 11,108.53

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Solution

The fourth proportional to 18,178.01, 25,089.71 and 11,108.53 is: 15,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.01 : 25,089.71 = 11,108.53 : x
  2. Step 2: Convert to fraction form
    18,178.01/25,089.71 = 11,108.53/x
  3. Step 3: Cross multiply
    18,178.01x = 25,089.71 × 11,108.53
  4. Step 4: Simplify right side
    18,178.01x = 278,709,796.23
  5. Step 5: Solve for x
    x = 278,709,796.23/18,178.01
  6. Step 6: Final answer
    x = 15,332.25

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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.