Home / 13,101.30-18,079.56-7,132.95

Finding the Fourth Proportional to 13,101.30, 18,079.56 and 7,132.95

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Solution

The fourth proportional to 13,101.30, 18,079.56 and 7,132.95 is: 9,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.30 : 18,079.56 = 7,132.95 : x
  2. Step 2: Convert to fraction form
    13,101.30/18,079.56 = 7,132.95/x
  3. Step 3: Cross multiply
    13,101.30x = 18,079.56 × 7,132.95
  4. Step 4: Simplify right side
    13,101.30x = 128,960,597.50
  5. Step 5: Solve for x
    x = 128,960,597.50/13,101.30
  6. Step 6: Final answer
    x = 9,843.34

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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.