Home / 18,251.45-25,165.99-13,478.32

Finding the Fourth Proportional to 18,251.45, 25,165.99 and 13,478.32

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Solution

The fourth proportional to 18,251.45, 25,165.99 and 13,478.32 is: 18,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.45 : 25,165.99 = 13,478.32 : x
  2. Step 2: Convert to fraction form
    18,251.45/25,165.99 = 13,478.32/x
  3. Step 3: Cross multiply
    18,251.45x = 25,165.99 × 13,478.32
  4. Step 4: Simplify right side
    18,251.45x = 339,195,266.34
  5. Step 5: Solve for x
    x = 339,195,266.34/18,251.45
  6. Step 6: Final answer
    x = 18,584.57

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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.