Home / 11,104.56-15,324.66-6,389.28

Finding the Fourth Proportional to 11,104.56, 15,324.66 and 6,389.28

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Solution

The fourth proportional to 11,104.56, 15,324.66 and 6,389.28 is: 8,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.56 : 15,324.66 = 6,389.28 : x
  2. Step 2: Convert to fraction form
    11,104.56/15,324.66 = 6,389.28/x
  3. Step 3: Cross multiply
    11,104.56x = 15,324.66 × 6,389.28
  4. Step 4: Simplify right side
    11,104.56x = 97,913,543.64
  5. Step 5: Solve for x
    x = 97,913,543.64/11,104.56
  6. Step 6: Final answer
    x = 8,817.42

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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.