Home / 13,279.01-18,325.70-7,310.61

Finding the Fourth Proportional to 13,279.01, 18,325.70 and 7,310.61

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Solution

The fourth proportional to 13,279.01, 18,325.70 and 7,310.61 is: 10,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.01 : 18,325.70 = 7,310.61 : x
  2. Step 2: Convert to fraction form
    13,279.01/18,325.70 = 7,310.61/x
  3. Step 3: Cross multiply
    13,279.01x = 18,325.70 × 7,310.61
  4. Step 4: Simplify right side
    13,279.01x = 133,972,009.12
  5. Step 5: Solve for x
    x = 133,972,009.12/13,279.01
  6. Step 6: Final answer
    x = 10,089.01

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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.