Home / 11,131.32-15,366.76-6,414.68

Finding the Fourth Proportional to 11,131.32, 15,366.76 and 6,414.68

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Solution

The fourth proportional to 11,131.32, 15,366.76 and 6,414.68 is: 8,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.32 : 15,366.76 = 6,414.68 : x
  2. Step 2: Convert to fraction form
    11,131.32/15,366.76 = 6,414.68/x
  3. Step 3: Cross multiply
    11,131.32x = 15,366.76 × 6,414.68
  4. Step 4: Simplify right side
    11,131.32x = 98,572,848.04
  5. Step 5: Solve for x
    x = 98,572,848.04/11,131.32
  6. Step 6: Final answer
    x = 8,855.45

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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.