Home / 11,166.57-15,408.18-6,689.34

Finding the Fourth Proportional to 11,166.57, 15,408.18 and 6,689.34

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Solution

The fourth proportional to 11,166.57, 15,408.18 and 6,689.34 is: 9,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.57 : 15,408.18 = 6,689.34 : x
  2. Step 2: Convert to fraction form
    11,166.57/15,408.18 = 6,689.34/x
  3. Step 3: Cross multiply
    11,166.57x = 15,408.18 × 6,689.34
  4. Step 4: Simplify right side
    11,166.57x = 103,070,554.80
  5. Step 5: Solve for x
    x = 103,070,554.80/11,166.57
  6. Step 6: Final answer
    x = 9,230.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.