Home / 10,864.28-16,296.48-3,938.60

Finding the Fourth Proportional to 10,864.28, 16,296.48 and 3,938.60

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Solution

The fourth proportional to 10,864.28, 16,296.48 and 3,938.60 is: 5,907.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.28 : 16,296.48 = 3,938.60 : x
  2. Step 2: Convert to fraction form
    10,864.28/16,296.48 = 3,938.60/x
  3. Step 3: Cross multiply
    10,864.28x = 16,296.48 × 3,938.60
  4. Step 4: Simplify right side
    10,864.28x = 64,185,316.13
  5. Step 5: Solve for x
    x = 64,185,316.13/10,864.28
  6. Step 6: Final answer
    x = 5,907.92

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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.