Home / 6,213.40-9,320.09-4,259.68

Finding the Fourth Proportional to 6,213.40, 9,320.09 and 4,259.68

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Solution

The fourth proportional to 6,213.40, 9,320.09 and 4,259.68 is: 6,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,213.40 : 9,320.09 = 4,259.68 : x
  2. Step 2: Convert to fraction form
    6,213.40/9,320.09 = 4,259.68/x
  3. Step 3: Cross multiply
    6,213.40x = 9,320.09 × 4,259.68
  4. Step 4: Simplify right side
    6,213.40x = 39,700,554.37
  5. Step 5: Solve for x
    x = 39,700,554.37/6,213.40
  6. Step 6: Final answer
    x = 6,389.51

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Similar ratio
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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.