Home / 18,834.21-28,251.52-5,686.70

Finding the Fourth Proportional to 18,834.21, 28,251.52 and 5,686.70

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Solution

The fourth proportional to 18,834.21, 28,251.52 and 5,686.70 is: 8,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.21 : 28,251.52 = 5,686.70 : x
  2. Step 2: Convert to fraction form
    18,834.21/28,251.52 = 5,686.70/x
  3. Step 3: Cross multiply
    18,834.21x = 28,251.52 × 5,686.70
  4. Step 4: Simplify right side
    18,834.21x = 160,657,763.31
  5. Step 5: Solve for x
    x = 160,657,763.31/18,834.21
  6. Step 6: Final answer
    x = 8,530.10

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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.