Home / 10,994.28-15,170.49-6,685.17

Finding the Fourth Proportional to 10,994.28, 15,170.49 and 6,685.17

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Solution

The fourth proportional to 10,994.28, 15,170.49 and 6,685.17 is: 9,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.28 : 15,170.49 = 6,685.17 : x
  2. Step 2: Convert to fraction form
    10,994.28/15,170.49 = 6,685.17/x
  3. Step 3: Cross multiply
    10,994.28x = 15,170.49 × 6,685.17
  4. Step 4: Simplify right side
    10,994.28x = 101,417,304.63
  5. Step 5: Solve for x
    x = 101,417,304.63/10,994.28
  6. Step 6: Final answer
    x = 9,224.55

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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.