Home / 7,376.27-10,178.87-4,189.50

Finding the Fourth Proportional to 7,376.27, 10,178.87 and 4,189.50

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Solution

The fourth proportional to 7,376.27, 10,178.87 and 4,189.50 is: 5,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.27 : 10,178.87 = 4,189.50 : x
  2. Step 2: Convert to fraction form
    7,376.27/10,178.87 = 4,189.50/x
  3. Step 3: Cross multiply
    7,376.27x = 10,178.87 × 4,189.50
  4. Step 4: Simplify right side
    7,376.27x = 42,644,354.92
  5. Step 5: Solve for x
    x = 42,644,354.92/7,376.27
  6. Step 6: Final answer
    x = 5,781.29

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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.