Home / 7,628.40-11,423.88-5,282.28

Finding the Fourth Proportional to 7,628.40, 11,423.88 and 5,282.28

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Solution

The fourth proportional to 7,628.40, 11,423.88 and 5,282.28 is: 7,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.40 : 11,423.88 = 5,282.28 : x
  2. Step 2: Convert to fraction form
    7,628.40/11,423.88 = 5,282.28/x
  3. Step 3: Cross multiply
    7,628.40x = 11,423.88 × 5,282.28
  4. Step 4: Simplify right side
    7,628.40x = 60,344,132.85
  5. Step 5: Solve for x
    x = 60,344,132.85/7,628.40
  6. Step 6: Final answer
    x = 7,910.46

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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.