Home / 8,210.86-12,313.70-5,399.55

Finding the Fourth Proportional to 8,210.86, 12,313.70 and 5,399.55

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Solution

The fourth proportional to 8,210.86, 12,313.70 and 5,399.55 is: 8,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.86 : 12,313.70 = 5,399.55 : x
  2. Step 2: Convert to fraction form
    8,210.86/12,313.70 = 5,399.55/x
  3. Step 3: Cross multiply
    8,210.86x = 12,313.70 × 5,399.55
  4. Step 4: Simplify right side
    8,210.86x = 66,488,438.84
  5. Step 5: Solve for x
    x = 66,488,438.84/8,210.86
  6. Step 6: Final answer
    x = 8,097.62

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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.