Home / 12,656.70-18,985.46-6,081.53

Finding the Fourth Proportional to 12,656.70, 18,985.46 and 6,081.53

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Solution

The fourth proportional to 12,656.70, 18,985.46 and 6,081.53 is: 9,122.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.70 : 18,985.46 = 6,081.53 : x
  2. Step 2: Convert to fraction form
    12,656.70/18,985.46 = 6,081.53/x
  3. Step 3: Cross multiply
    12,656.70x = 18,985.46 × 6,081.53
  4. Step 4: Simplify right side
    12,656.70x = 115,460,519.22
  5. Step 5: Solve for x
    x = 115,460,519.22/12,656.70
  6. Step 6: Final answer
    x = 9,122.48

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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.