Home / 7,912.08-10,917.38-5,254.88

Finding the Fourth Proportional to 7,912.08, 10,917.38 and 5,254.88

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Solution

The fourth proportional to 7,912.08, 10,917.38 and 5,254.88 is: 7,250.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.08 : 10,917.38 = 5,254.88 : x
  2. Step 2: Convert to fraction form
    7,912.08/10,917.38 = 5,254.88/x
  3. Step 3: Cross multiply
    7,912.08x = 10,917.38 × 5,254.88
  4. Step 4: Simplify right side
    7,912.08x = 57,369,480.36
  5. Step 5: Solve for x
    x = 57,369,480.36/7,912.08
  6. Step 6: Final answer
    x = 7,250.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.