Home / 8,507.29-12,760.87-3,313.17

Finding the Fourth Proportional to 8,507.29, 12,760.87 and 3,313.17

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Solution

The fourth proportional to 8,507.29, 12,760.87 and 3,313.17 is: 4,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.29 : 12,760.87 = 3,313.17 : x
  2. Step 2: Convert to fraction form
    8,507.29/12,760.87 = 3,313.17/x
  3. Step 3: Cross multiply
    8,507.29x = 12,760.87 × 3,313.17
  4. Step 4: Simplify right side
    8,507.29x = 42,278,931.66
  5. Step 5: Solve for x
    x = 42,278,931.66/8,507.29
  6. Step 6: Final answer
    x = 4,969.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.