Home / 13,909.65-19,195.80-7,622.01

Finding the Fourth Proportional to 13,909.65, 19,195.80 and 7,622.01

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Solution

The fourth proportional to 13,909.65, 19,195.80 and 7,622.01 is: 10,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.65 : 19,195.80 = 7,622.01 : x
  2. Step 2: Convert to fraction form
    13,909.65/19,195.80 = 7,622.01/x
  3. Step 3: Cross multiply
    13,909.65x = 19,195.80 × 7,622.01
  4. Step 4: Simplify right side
    13,909.65x = 146,310,579.56
  5. Step 5: Solve for x
    x = 146,310,579.56/13,909.65
  6. Step 6: Final answer
    x = 10,518.64

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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.