Home / 13,375.06-18,465.03-9,132.48

Finding the Fourth Proportional to 13,375.06, 18,465.03 and 9,132.48

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Solution

The fourth proportional to 13,375.06, 18,465.03 and 9,132.48 is: 12,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.06 : 18,465.03 = 9,132.48 : x
  2. Step 2: Convert to fraction form
    13,375.06/18,465.03 = 9,132.48/x
  3. Step 3: Cross multiply
    13,375.06x = 18,465.03 × 9,132.48
  4. Step 4: Simplify right side
    13,375.06x = 168,631,517.17
  5. Step 5: Solve for x
    x = 168,631,517.17/13,375.06
  6. Step 6: Final answer
    x = 12,607.91

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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.