Home / 10,132.05-13,976.02-6,729.21

Finding the Fourth Proportional to 10,132.05, 13,976.02 and 6,729.21

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Solution

The fourth proportional to 10,132.05, 13,976.02 and 6,729.21 is: 9,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.05 : 13,976.02 = 6,729.21 : x
  2. Step 2: Convert to fraction form
    10,132.05/13,976.02 = 6,729.21/x
  3. Step 3: Cross multiply
    10,132.05x = 13,976.02 × 6,729.21
  4. Step 4: Simplify right side
    10,132.05x = 94,047,573.54
  5. Step 5: Solve for x
    x = 94,047,573.54/10,132.05
  6. Step 6: Final answer
    x = 9,282.19

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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.