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Finding the Fourth Proportional to 18,352.59, 25,341.99 and 13,807.38

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Solution

The fourth proportional to 18,352.59, 25,341.99 and 13,807.38 is: 19,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.59 : 25,341.99 = 13,807.38 : x
  2. Step 2: Convert to fraction form
    18,352.59/25,341.99 = 13,807.38/x
  3. Step 3: Cross multiply
    18,352.59x = 25,341.99 × 13,807.38
  4. Step 4: Simplify right side
    18,352.59x = 349,906,485.89
  5. Step 5: Solve for x
    x = 349,906,485.89/18,352.59
  6. Step 6: Final answer
    x = 19,065.78

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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.