Home / 7,423.11-11,135.05-1,876.50

Finding the Fourth Proportional to 7,423.11, 11,135.05 and 1,876.50

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Solution

The fourth proportional to 7,423.11, 11,135.05 and 1,876.50 is: 2,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.11 : 11,135.05 = 1,876.50 : x
  2. Step 2: Convert to fraction form
    7,423.11/11,135.05 = 1,876.50/x
  3. Step 3: Cross multiply
    7,423.11x = 11,135.05 × 1,876.50
  4. Step 4: Simplify right side
    7,423.11x = 20,894,944.47
  5. Step 5: Solve for x
    x = 20,894,944.47/7,423.11
  6. Step 6: Final answer
    x = 2,814.85

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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.