Home / 18,369.52-25,350.46-9,986.56

Finding the Fourth Proportional to 18,369.52, 25,350.46 and 9,986.56

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Solution

The fourth proportional to 18,369.52, 25,350.46 and 9,986.56 is: 13,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.52 : 25,350.46 = 9,986.56 : x
  2. Step 2: Convert to fraction form
    18,369.52/25,350.46 = 9,986.56/x
  3. Step 3: Cross multiply
    18,369.52x = 25,350.46 × 9,986.56
  4. Step 4: Simplify right side
    18,369.52x = 253,163,889.82
  5. Step 5: Solve for x
    x = 253,163,889.82/18,369.52
  6. Step 6: Final answer
    x = 13,781.74

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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.