Home / 7,331.28-10,993.88-5,109.18

Finding the Fourth Proportional to 7,331.28, 10,993.88 and 5,109.18

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Solution

The fourth proportional to 7,331.28, 10,993.88 and 5,109.18 is: 7,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.28 : 10,993.88 = 5,109.18 : x
  2. Step 2: Convert to fraction form
    7,331.28/10,993.88 = 5,109.18/x
  3. Step 3: Cross multiply
    7,331.28x = 10,993.88 × 5,109.18
  4. Step 4: Simplify right side
    7,331.28x = 56,169,711.82
  5. Step 5: Solve for x
    x = 56,169,711.82/7,331.28
  6. Step 6: Final answer
    x = 7,661.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.