Home / 13,045.13-18,002.15-7,076.75

Finding the Fourth Proportional to 13,045.13, 18,002.15 and 7,076.75

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Solution

The fourth proportional to 13,045.13, 18,002.15 and 7,076.75 is: 9,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.13 : 18,002.15 = 7,076.75 : x
  2. Step 2: Convert to fraction form
    13,045.13/18,002.15 = 7,076.75/x
  3. Step 3: Cross multiply
    13,045.13x = 18,002.15 × 7,076.75
  4. Step 4: Simplify right side
    13,045.13x = 127,396,724.63
  5. Step 5: Solve for x
    x = 127,396,724.63/13,045.13
  6. Step 6: Final answer
    x = 9,765.84

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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.