Home / 8,782.91-13,141.92-5,275.05

Finding the Fourth Proportional to 8,782.91, 13,141.92 and 5,275.05

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Solution

The fourth proportional to 8,782.91, 13,141.92 and 5,275.05 is: 7,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.91 : 13,141.92 = 5,275.05 : x
  2. Step 2: Convert to fraction form
    8,782.91/13,141.92 = 5,275.05/x
  3. Step 3: Cross multiply
    8,782.91x = 13,141.92 × 5,275.05
  4. Step 4: Simplify right side
    8,782.91x = 69,324,255.60
  5. Step 5: Solve for x
    x = 69,324,255.60/8,782.91
  6. Step 6: Final answer
    x = 7,893.09

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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.