Home / 7,542.72-11,315.08-3,159.14

Finding the Fourth Proportional to 7,542.72, 11,315.08 and 3,159.14

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Solution

The fourth proportional to 7,542.72, 11,315.08 and 3,159.14 is: 4,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.72 : 11,315.08 = 3,159.14 : x
  2. Step 2: Convert to fraction form
    7,542.72/11,315.08 = 3,159.14/x
  3. Step 3: Cross multiply
    7,542.72x = 11,315.08 × 3,159.14
  4. Step 4: Simplify right side
    7,542.72x = 35,745,921.83
  5. Step 5: Solve for x
    x = 35,745,921.83/7,542.72
  6. Step 6: Final answer
    x = 4,739.13

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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.