Home / 16,847.87-23,251.62-9,678.78

Finding the Fourth Proportional to 16,847.87, 23,251.62 and 9,678.78

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Solution

The fourth proportional to 16,847.87, 23,251.62 and 9,678.78 is: 13,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,847.87 : 23,251.62 = 9,678.78 : x
  2. Step 2: Convert to fraction form
    16,847.87/23,251.62 = 9,678.78/x
  3. Step 3: Cross multiply
    16,847.87x = 23,251.62 × 9,678.78
  4. Step 4: Simplify right side
    16,847.87x = 225,047,314.62
  5. Step 5: Solve for x
    x = 225,047,314.62/16,847.87
  6. Step 6: Final answer
    x = 13,357.62

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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.