Home / 13,909.75-19,195.47-7,622.14

Finding the Fourth Proportional to 13,909.75, 19,195.47 and 7,622.14

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Solution

The fourth proportional to 13,909.75, 19,195.47 and 7,622.14 is: 10,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.75 : 19,195.47 = 7,622.14 : x
  2. Step 2: Convert to fraction form
    13,909.75/19,195.47 = 7,622.14/x
  3. Step 3: Cross multiply
    13,909.75x = 19,195.47 × 7,622.14
  4. Step 4: Simplify right side
    13,909.75x = 146,310,559.71
  5. Step 5: Solve for x
    x = 146,310,559.71/13,909.75
  6. Step 6: Final answer
    x = 10,518.56

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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.