Home / 18,667.39-28,006.55-5,520.10

Finding the Fourth Proportional to 18,667.39, 28,006.55 and 5,520.10

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Solution

The fourth proportional to 18,667.39, 28,006.55 and 5,520.10 is: 8,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.39 : 28,006.55 = 5,520.10 : x
  2. Step 2: Convert to fraction form
    18,667.39/28,006.55 = 5,520.10/x
  3. Step 3: Cross multiply
    18,667.39x = 28,006.55 × 5,520.10
  4. Step 4: Simplify right side
    18,667.39x = 154,598,956.66
  5. Step 5: Solve for x
    x = 154,598,956.66/18,667.39
  6. Step 6: Final answer
    x = 8,281.77

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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.