Home / 8,317.66-12,481.08-3,390.76

Finding the Fourth Proportional to 8,317.66, 12,481.08 and 3,390.76

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Solution

The fourth proportional to 8,317.66, 12,481.08 and 3,390.76 is: 5,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.66 : 12,481.08 = 3,390.76 : x
  2. Step 2: Convert to fraction form
    8,317.66/12,481.08 = 3,390.76/x
  3. Step 3: Cross multiply
    8,317.66x = 12,481.08 × 3,390.76
  4. Step 4: Simplify right side
    8,317.66x = 42,320,346.82
  5. Step 5: Solve for x
    x = 42,320,346.82/8,317.66
  6. Step 6: Final answer
    x = 5,088.01

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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.