Home / 11,401.92-15,734.52-6,686.64

Finding the Fourth Proportional to 11,401.92, 15,734.52 and 6,686.64

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Solution

The fourth proportional to 11,401.92, 15,734.52 and 6,686.64 is: 9,227.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,401.92 : 15,734.52 = 6,686.64 : x
  2. Step 2: Convert to fraction form
    11,401.92/15,734.52 = 6,686.64/x
  3. Step 3: Cross multiply
    11,401.92x = 15,734.52 × 6,686.64
  4. Step 4: Simplify right side
    11,401.92x = 105,211,070.81
  5. Step 5: Solve for x
    x = 105,211,070.81/11,401.92
  6. Step 6: Final answer
    x = 9,227.49

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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.