Home / 10,940.80-15,118.75-8,950.63

Finding the Fourth Proportional to 10,940.80, 15,118.75 and 8,950.63

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Solution

The fourth proportional to 10,940.80, 15,118.75 and 8,950.63 is: 12,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.80 : 15,118.75 = 8,950.63 : x
  2. Step 2: Convert to fraction form
    10,940.80/15,118.75 = 8,950.63/x
  3. Step 3: Cross multiply
    10,940.80x = 15,118.75 × 8,950.63
  4. Step 4: Simplify right side
    10,940.80x = 135,322,337.31
  5. Step 5: Solve for x
    x = 135,322,337.31/10,940.80
  6. Step 6: Final answer
    x = 12,368.60

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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.