Home / 9,131.28-13,670.04-6,948.88

Finding the Fourth Proportional to 9,131.28, 13,670.04 and 6,948.88

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Solution

The fourth proportional to 9,131.28, 13,670.04 and 6,948.88 is: 10,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.28 : 13,670.04 = 6,948.88 : x
  2. Step 2: Convert to fraction form
    9,131.28/13,670.04 = 6,948.88/x
  3. Step 3: Cross multiply
    9,131.28x = 13,670.04 × 6,948.88
  4. Step 4: Simplify right side
    9,131.28x = 94,991,467.56
  5. Step 5: Solve for x
    x = 94,991,467.56/9,131.28
  6. Step 6: Final answer
    x = 10,402.86

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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.