Home / 15,469.82-21,353.88-9,182.19

Finding the Fourth Proportional to 15,469.82, 21,353.88 and 9,182.19

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Solution

The fourth proportional to 15,469.82, 21,353.88 and 9,182.19 is: 12,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.82 : 21,353.88 = 9,182.19 : x
  2. Step 2: Convert to fraction form
    15,469.82/21,353.88 = 9,182.19/x
  3. Step 3: Cross multiply
    15,469.82x = 21,353.88 × 9,182.19
  4. Step 4: Simplify right side
    15,469.82x = 196,075,337.49
  5. Step 5: Solve for x
    x = 196,075,337.49/15,469.82
  6. Step 6: Final answer
    x = 12,674.70

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Half scale
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Double scale
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Similar ratio
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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.