Home / 7,199.64-10,789.56-6,480.36

Finding the Fourth Proportional to 7,199.64, 10,789.56 and 6,480.36

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Solution

The fourth proportional to 7,199.64, 10,789.56 and 6,480.36 is: 9,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.64 : 10,789.56 = 6,480.36 : x
  2. Step 2: Convert to fraction form
    7,199.64/10,789.56 = 6,480.36/x
  3. Step 3: Cross multiply
    7,199.64x = 10,789.56 × 6,480.36
  4. Step 4: Simplify right side
    7,199.64x = 69,920,233.04
  5. Step 5: Solve for x
    x = 69,920,233.04/7,199.64
  6. Step 6: Final answer
    x = 9,711.63

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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.