Home / 10,327.64-15,479.12-5,394.58

Finding the Fourth Proportional to 10,327.64, 15,479.12 and 5,394.58

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Solution

The fourth proportional to 10,327.64, 15,479.12 and 5,394.58 is: 8,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.64 : 15,479.12 = 5,394.58 : x
  2. Step 2: Convert to fraction form
    10,327.64/15,479.12 = 5,394.58/x
  3. Step 3: Cross multiply
    10,327.64x = 15,479.12 × 5,394.58
  4. Step 4: Simplify right side
    10,327.64x = 83,503,325.96
  5. Step 5: Solve for x
    x = 83,503,325.96/10,327.64
  6. Step 6: Final answer
    x = 8,085.43

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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.