Home / 8,328.05-12,454.13-6,221.12

Finding the Fourth Proportional to 8,328.05, 12,454.13 and 6,221.12

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Solution

The fourth proportional to 8,328.05, 12,454.13 and 6,221.12 is: 9,303.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.05 : 12,454.13 = 6,221.12 : x
  2. Step 2: Convert to fraction form
    8,328.05/12,454.13 = 6,221.12/x
  3. Step 3: Cross multiply
    8,328.05x = 12,454.13 × 6,221.12
  4. Step 4: Simplify right side
    8,328.05x = 77,478,543.85
  5. Step 5: Solve for x
    x = 77,478,543.85/8,328.05
  6. Step 6: Final answer
    x = 9,303.33

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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.