Home / 15,678.60-23,517.99-3,991.83

Finding the Fourth Proportional to 15,678.60, 23,517.99 and 3,991.83

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Solution

The fourth proportional to 15,678.60, 23,517.99 and 3,991.83 is: 5,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.60 : 23,517.99 = 3,991.83 : x
  2. Step 2: Convert to fraction form
    15,678.60/23,517.99 = 3,991.83/x
  3. Step 3: Cross multiply
    15,678.60x = 23,517.99 × 3,991.83
  4. Step 4: Simplify right side
    15,678.60x = 93,879,818.02
  5. Step 5: Solve for x
    x = 93,879,818.02/15,678.60
  6. Step 6: Final answer
    x = 5,987.77

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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.