Home / 13,102.52-18,080.10-7,436.12

Finding the Fourth Proportional to 13,102.52, 18,080.10 and 7,436.12

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Solution

The fourth proportional to 13,102.52, 18,080.10 and 7,436.12 is: 10,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.52 : 18,080.10 = 7,436.12 : x
  2. Step 2: Convert to fraction form
    13,102.52/18,080.10 = 7,436.12/x
  3. Step 3: Cross multiply
    13,102.52x = 18,080.10 × 7,436.12
  4. Step 4: Simplify right side
    13,102.52x = 134,445,793.21
  5. Step 5: Solve for x
    x = 134,445,793.21/13,102.52
  6. Step 6: Final answer
    x = 10,261.06

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Half scale
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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.