Home / 10,897.80-16,346.70-2,689.80

Finding the Fourth Proportional to 10,897.80, 16,346.70 and 2,689.80

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Solution

The fourth proportional to 10,897.80, 16,346.70 and 2,689.80 is: 4,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.80 : 16,346.70 = 2,689.80 : x
  2. Step 2: Convert to fraction form
    10,897.80/16,346.70 = 2,689.80/x
  3. Step 3: Cross multiply
    10,897.80x = 16,346.70 × 2,689.80
  4. Step 4: Simplify right side
    10,897.80x = 43,969,353.66
  5. Step 5: Solve for x
    x = 43,969,353.66/10,897.80
  6. Step 6: Final answer
    x = 4,034.70

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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.