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Finding the Fourth Proportional to 12,368.82, 18,557.95 and 7,441.94

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Solution

The fourth proportional to 12,368.82, 18,557.95 and 7,441.94 is: 11,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.82 : 18,557.95 = 7,441.94 : x
  2. Step 2: Convert to fraction form
    12,368.82/18,557.95 = 7,441.94/x
  3. Step 3: Cross multiply
    12,368.82x = 18,557.95 × 7,441.94
  4. Step 4: Simplify right side
    12,368.82x = 138,107,150.42
  5. Step 5: Solve for x
    x = 138,107,150.42/12,368.82
  6. Step 6: Final answer
    x = 11,165.75

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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.