Home / 18,633.17-25,713.95-10,135.38

Finding the Fourth Proportional to 18,633.17, 25,713.95 and 10,135.38

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Solution

The fourth proportional to 18,633.17, 25,713.95 and 10,135.38 is: 13,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.17 : 25,713.95 = 10,135.38 : x
  2. Step 2: Convert to fraction form
    18,633.17/25,713.95 = 10,135.38/x
  3. Step 3: Cross multiply
    18,633.17x = 25,713.95 × 10,135.38
  4. Step 4: Simplify right side
    18,633.17x = 260,620,654.55
  5. Step 5: Solve for x
    x = 260,620,654.55/18,633.17
  6. Step 6: Final answer
    x = 13,986.92

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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.