Home / 12,905.60-19,343.28-5,965.52

Finding the Fourth Proportional to 12,905.60, 19,343.28 and 5,965.52

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Solution

The fourth proportional to 12,905.60, 19,343.28 and 5,965.52 is: 8,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.60 : 19,343.28 = 5,965.52 : x
  2. Step 2: Convert to fraction form
    12,905.60/19,343.28 = 5,965.52/x
  3. Step 3: Cross multiply
    12,905.60x = 19,343.28 × 5,965.52
  4. Step 4: Simplify right side
    12,905.60x = 115,392,723.71
  5. Step 5: Solve for x
    x = 115,392,723.71/12,905.60
  6. Step 6: Final answer
    x = 8,941.29

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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.