Home / 12,415.38-18,623.08-4,622.38

Finding the Fourth Proportional to 12,415.38, 18,623.08 and 4,622.38

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Solution

The fourth proportional to 12,415.38, 18,623.08 and 4,622.38 is: 6,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.38 : 18,623.08 = 4,622.38 : x
  2. Step 2: Convert to fraction form
    12,415.38/18,623.08 = 4,622.38/x
  3. Step 3: Cross multiply
    12,415.38x = 18,623.08 × 4,622.38
  4. Step 4: Simplify right side
    12,415.38x = 86,082,952.53
  5. Step 5: Solve for x
    x = 86,082,952.53/12,415.38
  6. Step 6: Final answer
    x = 6,933.57

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.