Home / 8,692.11-11,995.29-5,155.65

Finding the Fourth Proportional to 8,692.11, 11,995.29 and 5,155.65

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Solution

The fourth proportional to 8,692.11, 11,995.29 and 5,155.65 is: 7,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.11 : 11,995.29 = 5,155.65 : x
  2. Step 2: Convert to fraction form
    8,692.11/11,995.29 = 5,155.65/x
  3. Step 3: Cross multiply
    8,692.11x = 11,995.29 × 5,155.65
  4. Step 4: Simplify right side
    8,692.11x = 61,843,516.89
  5. Step 5: Solve for x
    x = 61,843,516.89/8,692.11
  6. Step 6: Final answer
    x = 7,114.90

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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.