Home / 10,259.72-15,390.27-3,240.05

Finding the Fourth Proportional to 10,259.72, 15,390.27 and 3,240.05

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Solution

The fourth proportional to 10,259.72, 15,390.27 and 3,240.05 is: 4,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.72 : 15,390.27 = 3,240.05 : x
  2. Step 2: Convert to fraction form
    10,259.72/15,390.27 = 3,240.05/x
  3. Step 3: Cross multiply
    10,259.72x = 15,390.27 × 3,240.05
  4. Step 4: Simplify right side
    10,259.72x = 49,865,167.36
  5. Step 5: Solve for x
    x = 49,865,167.36/10,259.72
  6. Step 6: Final answer
    x = 4,860.29

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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.