Home / 16,940.87-23,378.10-9,387.05

Finding the Fourth Proportional to 16,940.87, 23,378.10 and 9,387.05

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Solution

The fourth proportional to 16,940.87, 23,378.10 and 9,387.05 is: 12,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.87 : 23,378.10 = 9,387.05 : x
  2. Step 2: Convert to fraction form
    16,940.87/23,378.10 = 9,387.05/x
  3. Step 3: Cross multiply
    16,940.87x = 23,378.10 × 9,387.05
  4. Step 4: Simplify right side
    16,940.87x = 219,451,393.61
  5. Step 5: Solve for x
    x = 219,451,393.61/16,940.87
  6. Step 6: Final answer
    x = 12,953.96

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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.