Home / 10,992.28-15,169.36-6,518.22

Finding the Fourth Proportional to 10,992.28, 15,169.36 and 6,518.22

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Solution

The fourth proportional to 10,992.28, 15,169.36 and 6,518.22 is: 8,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.28 : 15,169.36 = 6,518.22 : x
  2. Step 2: Convert to fraction form
    10,992.28/15,169.36 = 6,518.22/x
  3. Step 3: Cross multiply
    10,992.28x = 15,169.36 × 6,518.22
  4. Step 4: Simplify right side
    10,992.28x = 98,877,225.74
  5. Step 5: Solve for x
    x = 98,877,225.74/10,992.28
  6. Step 6: Final answer
    x = 8,995.15

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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.