Home / 18,671.45-28,012.64-5,524.17

Finding the Fourth Proportional to 18,671.45, 28,012.64 and 5,524.17

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Solution

The fourth proportional to 18,671.45, 28,012.64 and 5,524.17 is: 8,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.45 : 28,012.64 = 5,524.17 : x
  2. Step 2: Convert to fraction form
    18,671.45/28,012.64 = 5,524.17/x
  3. Step 3: Cross multiply
    18,671.45x = 28,012.64 × 5,524.17
  4. Step 4: Simplify right side
    18,671.45x = 154,746,557.89
  5. Step 5: Solve for x
    x = 154,746,557.89/18,671.45
  6. Step 6: Final answer
    x = 8,287.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.