Home / 13,467.95-18,585.61-7,418.09

Finding the Fourth Proportional to 13,467.95, 18,585.61 and 7,418.09

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Solution

The fourth proportional to 13,467.95, 18,585.61 and 7,418.09 is: 10,236.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.95 : 18,585.61 = 7,418.09 : x
  2. Step 2: Convert to fraction form
    13,467.95/18,585.61 = 7,418.09/x
  3. Step 3: Cross multiply
    13,467.95x = 18,585.61 × 7,418.09
  4. Step 4: Simplify right side
    13,467.95x = 137,869,616.21
  5. Step 5: Solve for x
    x = 137,869,616.21/13,467.95
  6. Step 6: Final answer
    x = 10,236.87

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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.