Home / 12,439.10-18,607.39-11,344.23

Finding the Fourth Proportional to 12,439.10, 18,607.39 and 11,344.23

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Solution

The fourth proportional to 12,439.10, 18,607.39 and 11,344.23 is: 16,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.10 : 18,607.39 = 11,344.23 : x
  2. Step 2: Convert to fraction form
    12,439.10/18,607.39 = 11,344.23/x
  3. Step 3: Cross multiply
    12,439.10x = 18,607.39 × 11,344.23
  4. Step 4: Simplify right side
    12,439.10x = 211,086,483.50
  5. Step 5: Solve for x
    x = 211,086,483.50/12,439.10
  6. Step 6: Final answer
    x = 16,969.59

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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.