Home / 11,840.28-17,756.78-9,995.91

Finding the Fourth Proportional to 11,840.28, 17,756.78 and 9,995.91

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Solution

The fourth proportional to 11,840.28, 17,756.78 and 9,995.91 is: 14,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.28 : 17,756.78 = 9,995.91 : x
  2. Step 2: Convert to fraction form
    11,840.28/17,756.78 = 9,995.91/x
  3. Step 3: Cross multiply
    11,840.28x = 17,756.78 × 9,995.91
  4. Step 4: Simplify right side
    11,840.28x = 177,495,124.79
  5. Step 5: Solve for x
    x = 177,495,124.79/11,840.28
  6. Step 6: Final answer
    x = 14,990.79

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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.