Home / 11,401.96-15,731.79-6,925.78

Finding the Fourth Proportional to 11,401.96, 15,731.79 and 6,925.78

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Solution

The fourth proportional to 11,401.96, 15,731.79 and 6,925.78 is: 9,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,401.96 : 15,731.79 = 6,925.78 : x
  2. Step 2: Convert to fraction form
    11,401.96/15,731.79 = 6,925.78/x
  3. Step 3: Cross multiply
    11,401.96x = 15,731.79 × 6,925.78
  4. Step 4: Simplify right side
    11,401.96x = 108,955,002.07
  5. Step 5: Solve for x
    x = 108,955,002.07/11,401.96
  6. Step 6: Final answer
    x = 9,555.81

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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.