Home / 7,515.91-11,276.45-3,358.79

Finding the Fourth Proportional to 7,515.91, 11,276.45 and 3,358.79

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Solution

The fourth proportional to 7,515.91, 11,276.45 and 3,358.79 is: 5,039.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.91 : 11,276.45 = 3,358.79 : x
  2. Step 2: Convert to fraction form
    7,515.91/11,276.45 = 3,358.79/x
  3. Step 3: Cross multiply
    7,515.91x = 11,276.45 × 3,358.79
  4. Step 4: Simplify right side
    7,515.91x = 37,875,227.50
  5. Step 5: Solve for x
    x = 37,875,227.50/7,515.91
  6. Step 6: Final answer
    x = 5,039.34

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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.