Home / 6,914.40-10,339.20-5,164.80

Finding the Fourth Proportional to 6,914.40, 10,339.20 and 5,164.80

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Solution

The fourth proportional to 6,914.40, 10,339.20 and 5,164.80 is: 7,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.40 : 10,339.20 = 5,164.80 : x
  2. Step 2: Convert to fraction form
    6,914.40/10,339.20 = 5,164.80/x
  3. Step 3: Cross multiply
    6,914.40x = 10,339.20 × 5,164.80
  4. Step 4: Simplify right side
    6,914.40x = 53,399,900.16
  5. Step 5: Solve for x
    x = 53,399,900.16/6,914.40
  6. Step 6: Final answer
    x = 7,723.00

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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.