Home / 10,956.38-15,119.80-5,920.58

Finding the Fourth Proportional to 10,956.38, 15,119.80 and 5,920.58

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Solution

The fourth proportional to 10,956.38, 15,119.80 and 5,920.58 is: 8,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.38 : 15,119.80 = 5,920.58 : x
  2. Step 2: Convert to fraction form
    10,956.38/15,119.80 = 5,920.58/x
  3. Step 3: Cross multiply
    10,956.38x = 15,119.80 × 5,920.58
  4. Step 4: Simplify right side
    10,956.38x = 89,518,012.20
  5. Step 5: Solve for x
    x = 89,518,012.20/10,956.38
  6. Step 6: Final answer
    x = 8,170.40

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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.