Home / 8,739.96-12,061.36-4,761.28

Finding the Fourth Proportional to 8,739.96, 12,061.36 and 4,761.28

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Solution

The fourth proportional to 8,739.96, 12,061.36 and 4,761.28 is: 6,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.96 : 12,061.36 = 4,761.28 : x
  2. Step 2: Convert to fraction form
    8,739.96/12,061.36 = 4,761.28/x
  3. Step 3: Cross multiply
    8,739.96x = 12,061.36 × 4,761.28
  4. Step 4: Simplify right side
    8,739.96x = 57,427,512.14
  5. Step 5: Solve for x
    x = 57,427,512.14/8,739.96
  6. Step 6: Final answer
    x = 6,570.68

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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.