Home / 11,321.28-15,621.96-6,602.16

Finding the Fourth Proportional to 11,321.28, 15,621.96 and 6,602.16

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Solution

The fourth proportional to 11,321.28, 15,621.96 and 6,602.16 is: 9,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.28 : 15,621.96 = 6,602.16 : x
  2. Step 2: Convert to fraction form
    11,321.28/15,621.96 = 6,602.16/x
  3. Step 3: Cross multiply
    11,321.28x = 15,621.96 × 6,602.16
  4. Step 4: Simplify right side
    11,321.28x = 103,138,679.43
  5. Step 5: Solve for x
    x = 103,138,679.43/11,321.28
  6. Step 6: Final answer
    x = 9,110.16

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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.