Home / 8,100.50-11,178.69-4,374.50

Finding the Fourth Proportional to 8,100.50, 11,178.69 and 4,374.50

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Solution

The fourth proportional to 8,100.50, 11,178.69 and 4,374.50 is: 6,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.50 : 11,178.69 = 4,374.50 : x
  2. Step 2: Convert to fraction form
    8,100.50/11,178.69 = 4,374.50/x
  3. Step 3: Cross multiply
    8,100.50x = 11,178.69 × 4,374.50
  4. Step 4: Simplify right side
    8,100.50x = 48,901,179.41
  5. Step 5: Solve for x
    x = 48,901,179.41/8,100.50
  6. Step 6: Final answer
    x = 6,036.81

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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.