Home / 13,170.55-18,173.23-7,505.41

Finding the Fourth Proportional to 13,170.55, 18,173.23 and 7,505.41

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Solution

The fourth proportional to 13,170.55, 18,173.23 and 7,505.41 is: 10,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.55 : 18,173.23 = 7,505.41 : x
  2. Step 2: Convert to fraction form
    13,170.55/18,173.23 = 7,505.41/x
  3. Step 3: Cross multiply
    13,170.55x = 18,173.23 × 7,505.41
  4. Step 4: Simplify right side
    13,170.55x = 136,397,542.17
  5. Step 5: Solve for x
    x = 136,397,542.17/13,170.55
  6. Step 6: Final answer
    x = 10,356.25

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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.