Home / 10,186.40-15,279.96-3,260

Finding the Fourth Proportional to 10,186.40, 15,279.96 and 3,260

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Solution

The fourth proportional to 10,186.40, 15,279.96 and 3,260 is: 4,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.40 : 15,279.96 = 3,260 : x
  2. Step 2: Convert to fraction form
    10,186.40/15,279.96 = 3,260/x
  3. Step 3: Cross multiply
    10,186.40x = 15,279.96 × 3,260
  4. Step 4: Simplify right side
    10,186.40x = 49,812,669.60
  5. Step 5: Solve for x
    x = 49,812,669.60/10,186.40
  6. Step 6: Final answer
    x = 4,890.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.