Home / 12,867.40-19,298.76-3,859.66

Finding the Fourth Proportional to 12,867.40, 19,298.76 and 3,859.66

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Solution

The fourth proportional to 12,867.40, 19,298.76 and 3,859.66 is: 5,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.40 : 19,298.76 = 3,859.66 : x
  2. Step 2: Convert to fraction form
    12,867.40/19,298.76 = 3,859.66/x
  3. Step 3: Cross multiply
    12,867.40x = 19,298.76 × 3,859.66
  4. Step 4: Simplify right side
    12,867.40x = 74,486,652.02
  5. Step 5: Solve for x
    x = 74,486,652.02/12,867.40
  6. Step 6: Final answer
    x = 5,788.79

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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.