Home / 11,393.23-15,722.28-6,218.90

Finding the Fourth Proportional to 11,393.23, 15,722.28 and 6,218.90

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Solution

The fourth proportional to 11,393.23, 15,722.28 and 6,218.90 is: 8,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.23 : 15,722.28 = 6,218.90 : x
  2. Step 2: Convert to fraction form
    11,393.23/15,722.28 = 6,218.90/x
  3. Step 3: Cross multiply
    11,393.23x = 15,722.28 × 6,218.90
  4. Step 4: Simplify right side
    11,393.23x = 97,775,287.09
  5. Step 5: Solve for x
    x = 97,775,287.09/11,393.23
  6. Step 6: Final answer
    x = 8,581.88

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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.