Home / 13,621.08-18,804.08-9,422.04

Finding the Fourth Proportional to 13,621.08, 18,804.08 and 9,422.04

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Solution

The fourth proportional to 13,621.08, 18,804.08 and 9,422.04 is: 13,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.08 : 18,804.08 = 9,422.04 : x
  2. Step 2: Convert to fraction form
    13,621.08/18,804.08 = 9,422.04/x
  3. Step 3: Cross multiply
    13,621.08x = 18,804.08 × 9,422.04
  4. Step 4: Simplify right side
    13,621.08x = 177,172,793.92
  5. Step 5: Solve for x
    x = 177,172,793.92/13,621.08
  6. Step 6: Final answer
    x = 13,007.25

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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.