Home / 8,761.28-12,090.74-4,782.74

Finding the Fourth Proportional to 8,761.28, 12,090.74 and 4,782.74

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Solution

The fourth proportional to 8,761.28, 12,090.74 and 4,782.74 is: 6,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.28 : 12,090.74 = 4,782.74 : x
  2. Step 2: Convert to fraction form
    8,761.28/12,090.74 = 4,782.74/x
  3. Step 3: Cross multiply
    8,761.28x = 12,090.74 × 4,782.74
  4. Step 4: Simplify right side
    8,761.28x = 57,826,781.46
  5. Step 5: Solve for x
    x = 57,826,781.46/8,761.28
  6. Step 6: Final answer
    x = 6,600.27

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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.