Home / 13,908.03-19,192.64-7,620.27

Finding the Fourth Proportional to 13,908.03, 19,192.64 and 7,620.27

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Solution

The fourth proportional to 13,908.03, 19,192.64 and 7,620.27 is: 10,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.03 : 19,192.64 = 7,620.27 : x
  2. Step 2: Convert to fraction form
    13,908.03/19,192.64 = 7,620.27/x
  3. Step 3: Cross multiply
    13,908.03x = 19,192.64 × 7,620.27
  4. Step 4: Simplify right side
    13,908.03x = 146,253,060.71
  5. Step 5: Solve for x
    x = 146,253,060.71/13,908.03
  6. Step 6: Final answer
    x = 10,515.73

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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.