Home / 7,213.18-9,954.31-4,231.16

Finding the Fourth Proportional to 7,213.18, 9,954.31 and 4,231.16

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Solution

The fourth proportional to 7,213.18, 9,954.31 and 4,231.16 is: 5,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.18 : 9,954.31 = 4,231.16 : x
  2. Step 2: Convert to fraction form
    7,213.18/9,954.31 = 4,231.16/x
  3. Step 3: Cross multiply
    7,213.18x = 9,954.31 × 4,231.16
  4. Step 4: Simplify right side
    7,213.18x = 42,118,278.30
  5. Step 5: Solve for x
    x = 42,118,278.30/7,213.18
  6. Step 6: Final answer
    x = 5,839.08

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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.