Home / 18,655.11-25,740.99-11,591.10

Finding the Fourth Proportional to 18,655.11, 25,740.99 and 11,591.10

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Solution

The fourth proportional to 18,655.11, 25,740.99 and 11,591.10 is: 15,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.11 : 25,740.99 = 11,591.10 : x
  2. Step 2: Convert to fraction form
    18,655.11/25,740.99 = 11,591.10/x
  3. Step 3: Cross multiply
    18,655.11x = 25,740.99 × 11,591.10
  4. Step 4: Simplify right side
    18,655.11x = 298,366,389.19
  5. Step 5: Solve for x
    x = 298,366,389.19/18,655.11
  6. Step 6: Final answer
    x = 15,993.82

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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.