Home / 13,616.08-20,409.56-8,934.32

Finding the Fourth Proportional to 13,616.08, 20,409.56 and 8,934.32

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Solution

The fourth proportional to 13,616.08, 20,409.56 and 8,934.32 is: 13,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.08 : 20,409.56 = 8,934.32 : x
  2. Step 2: Convert to fraction form
    13,616.08/20,409.56 = 8,934.32/x
  3. Step 3: Cross multiply
    13,616.08x = 20,409.56 × 8,934.32
  4. Step 4: Simplify right side
    13,616.08x = 182,345,540.10
  5. Step 5: Solve for x
    x = 182,345,540.10/13,616.08
  6. Step 6: Final answer
    x = 13,391.93

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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.