Home / 15,400.83-23,111.50-8,382.61

Finding the Fourth Proportional to 15,400.83, 23,111.50 and 8,382.61

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Solution

The fourth proportional to 15,400.83, 23,111.50 and 8,382.61 is: 12,579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.83 : 23,111.50 = 8,382.61 : x
  2. Step 2: Convert to fraction form
    15,400.83/23,111.50 = 8,382.61/x
  3. Step 3: Cross multiply
    15,400.83x = 23,111.50 × 8,382.61
  4. Step 4: Simplify right side
    15,400.83x = 193,734,698.95
  5. Step 5: Solve for x
    x = 193,734,698.95/15,400.83
  6. Step 6: Final answer
    x = 12,579.50

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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.