Home / 13,669.11-18,862.74-8,364.42

Finding the Fourth Proportional to 13,669.11, 18,862.74 and 8,364.42

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Solution

The fourth proportional to 13,669.11, 18,862.74 and 8,364.42 is: 11,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.11 : 18,862.74 = 8,364.42 : x
  2. Step 2: Convert to fraction form
    13,669.11/18,862.74 = 8,364.42/x
  3. Step 3: Cross multiply
    13,669.11x = 18,862.74 × 8,364.42
  4. Step 4: Simplify right side
    13,669.11x = 157,775,879.71
  5. Step 5: Solve for x
    x = 157,775,879.71/13,669.11
  6. Step 6: Final answer
    x = 11,542.51

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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.