Home / 11,366.16-15,680.25-6,648.36

Finding the Fourth Proportional to 11,366.16, 15,680.25 and 6,648.36

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Solution

The fourth proportional to 11,366.16, 15,680.25 and 6,648.36 is: 9,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.16 : 15,680.25 = 6,648.36 : x
  2. Step 2: Convert to fraction form
    11,366.16/15,680.25 = 6,648.36/x
  3. Step 3: Cross multiply
    11,366.16x = 15,680.25 × 6,648.36
  4. Step 4: Simplify right side
    11,366.16x = 104,247,946.89
  5. Step 5: Solve for x
    x = 104,247,946.89/11,366.16
  6. Step 6: Final answer
    x = 9,171.78

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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.