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Finding the Fourth Proportional to 12,448.53, 18,673.11 and 4,129.11

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Solution

The fourth proportional to 12,448.53, 18,673.11 and 4,129.11 is: 6,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.53 : 18,673.11 = 4,129.11 : x
  2. Step 2: Convert to fraction form
    12,448.53/18,673.11 = 4,129.11/x
  3. Step 3: Cross multiply
    12,448.53x = 18,673.11 × 4,129.11
  4. Step 4: Simplify right side
    12,448.53x = 77,103,325.23
  5. Step 5: Solve for x
    x = 77,103,325.23/12,448.53
  6. Step 6: Final answer
    x = 6,193.77

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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.