Home / 8,128.52-11,217.32-4,402.52

Finding the Fourth Proportional to 8,128.52, 11,217.32 and 4,402.52

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Solution

The fourth proportional to 8,128.52, 11,217.32 and 4,402.52 is: 6,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.52 : 11,217.32 = 4,402.52 : x
  2. Step 2: Convert to fraction form
    8,128.52/11,217.32 = 4,402.52/x
  3. Step 3: Cross multiply
    8,128.52x = 11,217.32 × 4,402.52
  4. Step 4: Simplify right side
    8,128.52x = 49,384,475.65
  5. Step 5: Solve for x
    x = 49,384,475.65/8,128.52
  6. Step 6: Final answer
    x = 6,075.46

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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.