Home / 7,381.28-10,177.80-5,360.60

Finding the Fourth Proportional to 7,381.28, 10,177.80 and 5,360.60

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Solution

The fourth proportional to 7,381.28, 10,177.80 and 5,360.60 is: 7,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.28 : 10,177.80 = 5,360.60 : x
  2. Step 2: Convert to fraction form
    7,381.28/10,177.80 = 5,360.60/x
  3. Step 3: Cross multiply
    7,381.28x = 10,177.80 × 5,360.60
  4. Step 4: Simplify right side
    7,381.28x = 54,559,114.68
  5. Step 5: Solve for x
    x = 54,559,114.68/7,381.28
  6. Step 6: Final answer
    x = 7,391.55

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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.