Home / 8,720.34-12,025.80-6,727.74

Finding the Fourth Proportional to 8,720.34, 12,025.80 and 6,727.74

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Solution

The fourth proportional to 8,720.34, 12,025.80 and 6,727.74 is: 9,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.34 : 12,025.80 = 6,727.74 : x
  2. Step 2: Convert to fraction form
    8,720.34/12,025.80 = 6,727.74/x
  3. Step 3: Cross multiply
    8,720.34x = 12,025.80 × 6,727.74
  4. Step 4: Simplify right side
    8,720.34x = 80,906,455.69
  5. Step 5: Solve for x
    x = 80,906,455.69/8,720.34
  6. Step 6: Final answer
    x = 9,277.90

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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.