Home / 10,259.33-15,391.40-3,240.05

Finding the Fourth Proportional to 10,259.33, 15,391.40 and 3,240.05

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Solution

The fourth proportional to 10,259.33, 15,391.40 and 3,240.05 is: 4,860.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.33 : 15,391.40 = 3,240.05 : x
  2. Step 2: Convert to fraction form
    10,259.33/15,391.40 = 3,240.05/x
  3. Step 3: Cross multiply
    10,259.33x = 15,391.40 × 3,240.05
  4. Step 4: Simplify right side
    10,259.33x = 49,868,927.85
  5. Step 5: Solve for x
    x = 49,868,927.85/10,259.33
  6. Step 6: Final answer
    x = 4,860.84

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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.