Home / 8,240.86-12,368.45-3,313.90

Finding the Fourth Proportional to 8,240.86, 12,368.45 and 3,313.90

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Solution

The fourth proportional to 8,240.86, 12,368.45 and 3,313.90 is: 4,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.86 : 12,368.45 = 3,313.90 : x
  2. Step 2: Convert to fraction form
    8,240.86/12,368.45 = 3,313.90/x
  3. Step 3: Cross multiply
    8,240.86x = 12,368.45 × 3,313.90
  4. Step 4: Simplify right side
    8,240.86x = 40,987,806.46
  5. Step 5: Solve for x
    x = 40,987,806.46/8,240.86
  6. Step 6: Final answer
    x = 4,973.73

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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.