Home / 9,707.12-14,557.62-3,131.90

Finding the Fourth Proportional to 9,707.12, 14,557.62 and 3,131.90

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Solution

The fourth proportional to 9,707.12, 14,557.62 and 3,131.90 is: 4,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,707.12 : 14,557.62 = 3,131.90 : x
  2. Step 2: Convert to fraction form
    9,707.12/14,557.62 = 3,131.90/x
  3. Step 3: Cross multiply
    9,707.12x = 14,557.62 × 3,131.90
  4. Step 4: Simplify right side
    9,707.12x = 45,593,010.08
  5. Step 5: Solve for x
    x = 45,593,010.08/9,707.12
  6. Step 6: Final answer
    x = 4,696.86

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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.