Home / 10,994.38-15,171.60-6,518.56

Finding the Fourth Proportional to 10,994.38, 15,171.60 and 6,518.56

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Solution

The fourth proportional to 10,994.38, 15,171.60 and 6,518.56 is: 8,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.38 : 15,171.60 = 6,518.56 : x
  2. Step 2: Convert to fraction form
    10,994.38/15,171.60 = 6,518.56/x
  3. Step 3: Cross multiply
    10,994.38x = 15,171.60 × 6,518.56
  4. Step 4: Simplify right side
    10,994.38x = 98,896,984.90
  5. Step 5: Solve for x
    x = 98,896,984.90/10,994.38
  6. Step 6: Final answer
    x = 8,995.23

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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.