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Finding the Fourth Proportional to 6,319.55, 9,480.98 and 5,631.05

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Solution

The fourth proportional to 6,319.55, 9,480.98 and 5,631.05 is: 8,448.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.55 : 9,480.98 = 5,631.05 : x
  2. Step 2: Convert to fraction form
    6,319.55/9,480.98 = 5,631.05/x
  3. Step 3: Cross multiply
    6,319.55x = 9,480.98 × 5,631.05
  4. Step 4: Simplify right side
    6,319.55x = 53,387,910.21
  5. Step 5: Solve for x
    x = 53,387,910.21/6,319.55
  6. Step 6: Final answer
    x = 8,448.05

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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.