Home / 7,423.49-11,135.61-1,876.88

Finding the Fourth Proportional to 7,423.49, 11,135.61 and 1,876.88

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Solution

The fourth proportional to 7,423.49, 11,135.61 and 1,876.88 is: 2,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.49 : 11,135.61 = 1,876.88 : x
  2. Step 2: Convert to fraction form
    7,423.49/11,135.61 = 1,876.88/x
  3. Step 3: Cross multiply
    7,423.49x = 11,135.61 × 1,876.88
  4. Step 4: Simplify right side
    7,423.49x = 20,900,148.02
  5. Step 5: Solve for x
    x = 20,900,148.02/7,423.49
  6. Step 6: Final answer
    x = 2,815.41

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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.