Home / 19,118.73-28,678.11-5,972.24

Finding the Fourth Proportional to 19,118.73, 28,678.11 and 5,972.24

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Solution

The fourth proportional to 19,118.73, 28,678.11 and 5,972.24 is: 8,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.73 : 28,678.11 = 5,972.24 : x
  2. Step 2: Convert to fraction form
    19,118.73/28,678.11 = 5,972.24/x
  3. Step 3: Cross multiply
    19,118.73x = 28,678.11 × 5,972.24
  4. Step 4: Simplify right side
    19,118.73x = 171,272,412.28
  5. Step 5: Solve for x
    x = 171,272,412.28/19,118.73
  6. Step 6: Final answer
    x = 8,958.36

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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.