Home / 10,422.61-15,636.34-3,027.21

Finding the Fourth Proportional to 10,422.61, 15,636.34 and 3,027.21

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Solution

The fourth proportional to 10,422.61, 15,636.34 and 3,027.21 is: 4,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.61 : 15,636.34 = 3,027.21 : x
  2. Step 2: Convert to fraction form
    10,422.61/15,636.34 = 3,027.21/x
  3. Step 3: Cross multiply
    10,422.61x = 15,636.34 × 3,027.21
  4. Step 4: Simplify right side
    10,422.61x = 47,334,429.96
  5. Step 5: Solve for x
    x = 47,334,429.96/10,422.61
  6. Step 6: Final answer
    x = 4,541.52

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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.