Home / 10,208.28-15,312.99-3,189.26

Finding the Fourth Proportional to 10,208.28, 15,312.99 and 3,189.26

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Solution

The fourth proportional to 10,208.28, 15,312.99 and 3,189.26 is: 4,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.28 : 15,312.99 = 3,189.26 : x
  2. Step 2: Convert to fraction form
    10,208.28/15,312.99 = 3,189.26/x
  3. Step 3: Cross multiply
    10,208.28x = 15,312.99 × 3,189.26
  4. Step 4: Simplify right side
    10,208.28x = 48,837,144.77
  5. Step 5: Solve for x
    x = 48,837,144.77/10,208.28
  6. Step 6: Final answer
    x = 4,784.07

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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.