Home / 8,140.74-11,235.50-5,901.80

Finding the Fourth Proportional to 8,140.74, 11,235.50 and 5,901.80

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Solution

The fourth proportional to 8,140.74, 11,235.50 and 5,901.80 is: 8,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.74 : 11,235.50 = 5,901.80 : x
  2. Step 2: Convert to fraction form
    8,140.74/11,235.50 = 5,901.80/x
  3. Step 3: Cross multiply
    8,140.74x = 11,235.50 × 5,901.80
  4. Step 4: Simplify right side
    8,140.74x = 66,309,673.90
  5. Step 5: Solve for x
    x = 66,309,673.90/8,140.74
  6. Step 6: Final answer
    x = 8,145.41

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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.