Home / 8,320.90-12,484.98-4,420.74

Finding the Fourth Proportional to 8,320.90, 12,484.98 and 4,420.74

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Solution

The fourth proportional to 8,320.90, 12,484.98 and 4,420.74 is: 6,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.90 : 12,484.98 = 4,420.74 : x
  2. Step 2: Convert to fraction form
    8,320.90/12,484.98 = 4,420.74/x
  3. Step 3: Cross multiply
    8,320.90x = 12,484.98 × 4,420.74
  4. Step 4: Simplify right side
    8,320.90x = 55,192,850.49
  5. Step 5: Solve for x
    x = 55,192,850.49/8,320.90
  6. Step 6: Final answer
    x = 6,633.04

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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.