Home / 8,220.83-12,309.30-4,317.03

Finding the Fourth Proportional to 8,220.83, 12,309.30 and 4,317.03

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Solution

The fourth proportional to 8,220.83, 12,309.30 and 4,317.03 is: 6,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.83 : 12,309.30 = 4,317.03 : x
  2. Step 2: Convert to fraction form
    8,220.83/12,309.30 = 4,317.03/x
  3. Step 3: Cross multiply
    8,220.83x = 12,309.30 × 4,317.03
  4. Step 4: Simplify right side
    8,220.83x = 53,139,617.38
  5. Step 5: Solve for x
    x = 53,139,617.38/8,220.83
  6. Step 6: Final answer
    x = 6,464.02

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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.