Home / 11,401.84-15,734.68-6,686.56

Finding the Fourth Proportional to 11,401.84, 15,734.68 and 6,686.56

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Solution

The fourth proportional to 11,401.84, 15,734.68 and 6,686.56 is: 9,227.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,401.84 : 15,734.68 = 6,686.56 : x
  2. Step 2: Convert to fraction form
    11,401.84/15,734.68 = 6,686.56/x
  3. Step 3: Cross multiply
    11,401.84x = 15,734.68 × 6,686.56
  4. Step 4: Simplify right side
    11,401.84x = 105,210,881.90
  5. Step 5: Solve for x
    x = 105,210,881.90/11,401.84
  6. Step 6: Final answer
    x = 9,227.54

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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.