Home / 7,147.23-10,713.75-3,392.43

Finding the Fourth Proportional to 7,147.23, 10,713.75 and 3,392.43

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Solution

The fourth proportional to 7,147.23, 10,713.75 and 3,392.43 is: 5,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.23 : 10,713.75 = 3,392.43 : x
  2. Step 2: Convert to fraction form
    7,147.23/10,713.75 = 3,392.43/x
  3. Step 3: Cross multiply
    7,147.23x = 10,713.75 × 3,392.43
  4. Step 4: Simplify right side
    7,147.23x = 36,345,646.91
  5. Step 5: Solve for x
    x = 36,345,646.91/7,147.23
  6. Step 6: Final answer
    x = 5,085.28

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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.