Home / 18,715.50-28,077.87-5,567.82

Finding the Fourth Proportional to 18,715.50, 28,077.87 and 5,567.82

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Solution

The fourth proportional to 18,715.50, 28,077.87 and 5,567.82 is: 8,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.50 : 28,077.87 = 5,567.82 : x
  2. Step 2: Convert to fraction form
    18,715.50/28,077.87 = 5,567.82/x
  3. Step 3: Cross multiply
    18,715.50x = 28,077.87 × 5,567.82
  4. Step 4: Simplify right side
    18,715.50x = 156,332,526.14
  5. Step 5: Solve for x
    x = 156,332,526.14/18,715.50
  6. Step 6: Final answer
    x = 8,353.10

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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.