Home / 19,747.65-29,621.47-7,906.75

Finding the Fourth Proportional to 19,747.65, 29,621.47 and 7,906.75

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Solution

The fourth proportional to 19,747.65, 29,621.47 and 7,906.75 is: 11,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.65 : 29,621.47 = 7,906.75 : x
  2. Step 2: Convert to fraction form
    19,747.65/29,621.47 = 7,906.75/x
  3. Step 3: Cross multiply
    19,747.65x = 29,621.47 × 7,906.75
  4. Step 4: Simplify right side
    19,747.65x = 234,209,557.92
  5. Step 5: Solve for x
    x = 234,209,557.92/19,747.65
  6. Step 6: Final answer
    x = 11,860.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.