Home / 7,242.12-9,995.82-4,719.87

Finding the Fourth Proportional to 7,242.12, 9,995.82 and 4,719.87

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Solution

The fourth proportional to 7,242.12, 9,995.82 and 4,719.87 is: 6,514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.12 : 9,995.82 = 4,719.87 : x
  2. Step 2: Convert to fraction form
    7,242.12/9,995.82 = 4,719.87/x
  3. Step 3: Cross multiply
    7,242.12x = 9,995.82 × 4,719.87
  4. Step 4: Simplify right side
    7,242.12x = 47,178,970.94
  5. Step 5: Solve for x
    x = 47,178,970.94/7,242.12
  6. Step 6: Final answer
    x = 6,514.52

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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.