Home / 8,509.70-11,740.68-5,151.44

Finding the Fourth Proportional to 8,509.70, 11,740.68 and 5,151.44

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Solution

The fourth proportional to 8,509.70, 11,740.68 and 5,151.44 is: 7,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.70 : 11,740.68 = 5,151.44 : x
  2. Step 2: Convert to fraction form
    8,509.70/11,740.68 = 5,151.44/x
  3. Step 3: Cross multiply
    8,509.70x = 11,740.68 × 5,151.44
  4. Step 4: Simplify right side
    8,509.70x = 60,481,437.93
  5. Step 5: Solve for x
    x = 60,481,437.93/8,509.70
  6. Step 6: Final answer
    x = 7,107.35

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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.