Home / 8,761.90-12,091.61-4,783.18

Finding the Fourth Proportional to 8,761.90, 12,091.61 and 4,783.18

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Solution

The fourth proportional to 8,761.90, 12,091.61 and 4,783.18 is: 6,600.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.90 : 12,091.61 = 4,783.18 : x
  2. Step 2: Convert to fraction form
    8,761.90/12,091.61 = 4,783.18/x
  3. Step 3: Cross multiply
    8,761.90x = 12,091.61 × 4,783.18
  4. Step 4: Simplify right side
    8,761.90x = 57,836,347.12
  5. Step 5: Solve for x
    x = 57,836,347.12/8,761.90
  6. Step 6: Final answer
    x = 6,600.89

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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.