Home / 6,309.90-9,459.99-3,187.35

Finding the Fourth Proportional to 6,309.90, 9,459.99 and 3,187.35

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Solution

The fourth proportional to 6,309.90, 9,459.99 and 3,187.35 is: 4,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.90 : 9,459.99 = 3,187.35 : x
  2. Step 2: Convert to fraction form
    6,309.90/9,459.99 = 3,187.35/x
  3. Step 3: Cross multiply
    6,309.90x = 9,459.99 × 3,187.35
  4. Step 4: Simplify right side
    6,309.90x = 30,152,299.13
  5. Step 5: Solve for x
    x = 30,152,299.13/6,309.90
  6. Step 6: Final answer
    x = 4,778.57

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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.