Home / 10,221.64-15,319.63-4,371.37

Finding the Fourth Proportional to 10,221.64, 15,319.63 and 4,371.37

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Solution

The fourth proportional to 10,221.64, 15,319.63 and 4,371.37 is: 6,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.64 : 15,319.63 = 4,371.37 : x
  2. Step 2: Convert to fraction form
    10,221.64/15,319.63 = 4,371.37/x
  3. Step 3: Cross multiply
    10,221.64x = 15,319.63 × 4,371.37
  4. Step 4: Simplify right side
    10,221.64x = 66,967,770.99
  5. Step 5: Solve for x
    x = 66,967,770.99/10,221.64
  6. Step 6: Final answer
    x = 6,551.57

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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.