Home / 13,089.83-18,063.97-7,422.76

Finding the Fourth Proportional to 13,089.83, 18,063.97 and 7,422.76

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Solution

The fourth proportional to 13,089.83, 18,063.97 and 7,422.76 is: 10,243.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.83 : 18,063.97 = 7,422.76 : x
  2. Step 2: Convert to fraction form
    13,089.83/18,063.97 = 7,422.76/x
  3. Step 3: Cross multiply
    13,089.83x = 18,063.97 × 7,422.76
  4. Step 4: Simplify right side
    13,089.83x = 134,084,513.96
  5. Step 5: Solve for x
    x = 134,084,513.96/13,089.83
  6. Step 6: Final answer
    x = 10,243.41

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Half scale
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Double 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.