Home / 11,099.97-15,316.56-6,320.54

Finding the Fourth Proportional to 11,099.97, 15,316.56 and 6,320.54

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Solution

The fourth proportional to 11,099.97, 15,316.56 and 6,320.54 is: 8,721.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.97 : 15,316.56 = 6,320.54 : x
  2. Step 2: Convert to fraction form
    11,099.97/15,316.56 = 6,320.54/x
  3. Step 3: Cross multiply
    11,099.97x = 15,316.56 × 6,320.54
  4. Step 4: Simplify right side
    11,099.97x = 96,808,853.56
  5. Step 5: Solve for x
    x = 96,808,853.56/11,099.97
  6. Step 6: Final answer
    x = 8,721.54

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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.