Home / 18,480.05-25,498.68-10,520.18

Finding the Fourth Proportional to 18,480.05, 25,498.68 and 10,520.18

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Solution

The fourth proportional to 18,480.05, 25,498.68 and 10,520.18 is: 14,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.05 : 25,498.68 = 10,520.18 : x
  2. Step 2: Convert to fraction form
    18,480.05/25,498.68 = 10,520.18/x
  3. Step 3: Cross multiply
    18,480.05x = 25,498.68 × 10,520.18
  4. Step 4: Simplify right side
    18,480.05x = 268,250,575.87
  5. Step 5: Solve for x
    x = 268,250,575.87/18,480.05
  6. Step 6: Final answer
    x = 14,515.69

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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.