Home / 12,868.60-19,299.66-5,077.48

Finding the Fourth Proportional to 12,868.60, 19,299.66 and 5,077.48

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Solution

The fourth proportional to 12,868.60, 19,299.66 and 5,077.48 is: 7,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.60 : 19,299.66 = 5,077.48 : x
  2. Step 2: Convert to fraction form
    12,868.60/19,299.66 = 5,077.48/x
  3. Step 3: Cross multiply
    12,868.60x = 19,299.66 × 5,077.48
  4. Step 4: Simplify right side
    12,868.60x = 97,993,637.66
  5. Step 5: Solve for x
    x = 97,993,637.66/12,868.60
  6. Step 6: Final answer
    x = 7,614.94

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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.