Home / 6,674.40-10,011.60-5,119.20

Finding the Fourth Proportional to 6,674.40, 10,011.60 and 5,119.20

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Solution

The fourth proportional to 6,674.40, 10,011.60 and 5,119.20 is: 7,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,674.40 : 10,011.60 = 5,119.20 : x
  2. Step 2: Convert to fraction form
    6,674.40/10,011.60 = 5,119.20/x
  3. Step 3: Cross multiply
    6,674.40x = 10,011.60 × 5,119.20
  4. Step 4: Simplify right side
    6,674.40x = 51,251,382.72
  5. Step 5: Solve for x
    x = 51,251,382.72/6,674.40
  6. Step 6: Final answer
    x = 7,678.80

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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.