Home / 9,195.83-12,692.85-5,421.19

Finding the Fourth Proportional to 9,195.83, 12,692.85 and 5,421.19

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Solution

The fourth proportional to 9,195.83, 12,692.85 and 5,421.19 is: 7,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.83 : 12,692.85 = 5,421.19 : x
  2. Step 2: Convert to fraction form
    9,195.83/12,692.85 = 5,421.19/x
  3. Step 3: Cross multiply
    9,195.83x = 12,692.85 × 5,421.19
  4. Step 4: Simplify right side
    9,195.83x = 68,810,351.49
  5. Step 5: Solve for x
    x = 68,810,351.49/9,195.83
  6. Step 6: Final answer
    x = 7,482.78

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Half scale
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Double scale
Find fourth proportional to 9,196.83, 12,694.23 and 5,422.19
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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.