Home / 8,091.40-11,169.58-5,440.35

Finding the Fourth Proportional to 8,091.40, 11,169.58 and 5,440.35

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Solution

The fourth proportional to 8,091.40, 11,169.58 and 5,440.35 is: 7,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.40 : 11,169.58 = 5,440.35 : x
  2. Step 2: Convert to fraction form
    8,091.40/11,169.58 = 5,440.35/x
  3. Step 3: Cross multiply
    8,091.40x = 11,169.58 × 5,440.35
  4. Step 4: Simplify right side
    8,091.40x = 60,766,424.55
  5. Step 5: Solve for x
    x = 60,766,424.55/8,091.40
  6. Step 6: Final answer
    x = 7,510.00

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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.