Home / 13,909.68-19,195.68-7,622.07

Finding the Fourth Proportional to 13,909.68, 19,195.68 and 7,622.07

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Solution

The fourth proportional to 13,909.68, 19,195.68 and 7,622.07 is: 10,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.68 : 19,195.68 = 7,622.07 : x
  2. Step 2: Convert to fraction form
    13,909.68/19,195.68 = 7,622.07/x
  3. Step 3: Cross multiply
    13,909.68x = 19,195.68 × 7,622.07
  4. Step 4: Simplify right side
    13,909.68x = 146,310,816.66
  5. Step 5: Solve for x
    x = 146,310,816.66/13,909.68
  6. Step 6: Final answer
    x = 10,518.63

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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.