Home / 13,868.61-20,775.39-6,462.87

Finding the Fourth Proportional to 13,868.61, 20,775.39 and 6,462.87

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Solution

The fourth proportional to 13,868.61, 20,775.39 and 6,462.87 is: 9,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.61 : 20,775.39 = 6,462.87 : x
  2. Step 2: Convert to fraction form
    13,868.61/20,775.39 = 6,462.87/x
  3. Step 3: Cross multiply
    13,868.61x = 20,775.39 × 6,462.87
  4. Step 4: Simplify right side
    13,868.61x = 134,268,644.77
  5. Step 5: Solve for x
    x = 134,268,644.77/13,868.61
  6. Step 6: Final answer
    x = 9,681.48

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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.