Home / 8,739.42-12,057-5,756.72

Finding the Fourth Proportional to 8,739.42, 12,057 and 5,756.72

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Solution

The fourth proportional to 8,739.42, 12,057 and 5,756.72 is: 7,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.42 : 12,057 = 5,756.72 : x
  2. Step 2: Convert to fraction form
    8,739.42/12,057 = 5,756.72/x
  3. Step 3: Cross multiply
    8,739.42x = 12,057 × 5,756.72
  4. Step 4: Simplify right side
    8,739.42x = 69,408,773.04
  5. Step 5: Solve for x
    x = 69,408,773.04/8,739.42
  6. Step 6: Final answer
    x = 7,942.03

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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.