Home / 11,140.25-15,373.55-6,172.25

Finding the Fourth Proportional to 11,140.25, 15,373.55 and 6,172.25

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Solution

The fourth proportional to 11,140.25, 15,373.55 and 6,172.25 is: 8,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.25 : 15,373.55 = 6,172.25 : x
  2. Step 2: Convert to fraction form
    11,140.25/15,373.55 = 6,172.25/x
  3. Step 3: Cross multiply
    11,140.25x = 15,373.55 × 6,172.25
  4. Step 4: Simplify right side
    11,140.25x = 94,889,363.13
  5. Step 5: Solve for x
    x = 94,889,363.13/11,140.25
  6. Step 6: Final answer
    x = 8,517.71

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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.