Home / 12,656.14-18,989.25-4,862.86

Finding the Fourth Proportional to 12,656.14, 18,989.25 and 4,862.86

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Solution

The fourth proportional to 12,656.14, 18,989.25 and 4,862.86 is: 7,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.14 : 18,989.25 = 4,862.86 : x
  2. Step 2: Convert to fraction form
    12,656.14/18,989.25 = 4,862.86/x
  3. Step 3: Cross multiply
    12,656.14x = 18,989.25 × 4,862.86
  4. Step 4: Simplify right side
    12,656.14x = 92,342,064.26
  5. Step 5: Solve for x
    x = 92,342,064.26/12,656.14
  6. Step 6: Final answer
    x = 7,296.23

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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.