Home / 11,166.66-15,409.49-6,692.90

Finding the Fourth Proportional to 11,166.66, 15,409.49 and 6,692.90

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Solution

The fourth proportional to 11,166.66, 15,409.49 and 6,692.90 is: 9,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.66 : 15,409.49 = 6,692.90 : x
  2. Step 2: Convert to fraction form
    11,166.66/15,409.49 = 6,692.90/x
  3. Step 3: Cross multiply
    11,166.66x = 15,409.49 × 6,692.90
  4. Step 4: Simplify right side
    11,166.66x = 103,134,065.11
  5. Step 5: Solve for x
    x = 103,134,065.11/11,166.66
  6. Step 6: Final answer
    x = 9,235.89

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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.