Home / 13,909.04-19,194.52-7,621.44

Finding the Fourth Proportional to 13,909.04, 19,194.52 and 7,621.44

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Solution

The fourth proportional to 13,909.04, 19,194.52 and 7,621.44 is: 10,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.04 : 19,194.52 = 7,621.44 : x
  2. Step 2: Convert to fraction form
    13,909.04/19,194.52 = 7,621.44/x
  3. Step 3: Cross multiply
    13,909.04x = 19,194.52 × 7,621.44
  4. Step 4: Simplify right side
    13,909.04x = 146,289,882.51
  5. Step 5: Solve for x
    x = 146,289,882.51/13,909.04
  6. Step 6: Final answer
    x = 10,517.61

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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.