Home / 10,926.32-15,079.91-6,679.80

Finding the Fourth Proportional to 10,926.32, 15,079.91 and 6,679.80

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Solution

The fourth proportional to 10,926.32, 15,079.91 and 6,679.80 is: 9,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.32 : 15,079.91 = 6,679.80 : x
  2. Step 2: Convert to fraction form
    10,926.32/15,079.91 = 6,679.80/x
  3. Step 3: Cross multiply
    10,926.32x = 15,079.91 × 6,679.80
  4. Step 4: Simplify right side
    10,926.32x = 100,730,749.42
  5. Step 5: Solve for x
    x = 100,730,749.42/10,926.32
  6. Step 6: Final answer
    x = 9,219.10

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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.