Home / 13,927.08-20,871.66-7,677.72

Finding the Fourth Proportional to 13,927.08, 20,871.66 and 7,677.72

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Solution

The fourth proportional to 13,927.08, 20,871.66 and 7,677.72 is: 11,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.08 : 20,871.66 = 7,677.72 : x
  2. Step 2: Convert to fraction form
    13,927.08/20,871.66 = 7,677.72/x
  3. Step 3: Cross multiply
    13,927.08x = 20,871.66 × 7,677.72
  4. Step 4: Simplify right side
    13,927.08x = 160,246,761.42
  5. Step 5: Solve for x
    x = 160,246,761.42/13,927.08
  6. Step 6: Final answer
    x = 11,506.13

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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.