Home / 15,265.05-21,065.15-8,550.57

Finding the Fourth Proportional to 15,265.05, 21,065.15 and 8,550.57

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Solution

The fourth proportional to 15,265.05, 21,065.15 and 8,550.57 is: 11,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,265.05 : 21,065.15 = 8,550.57 : x
  2. Step 2: Convert to fraction form
    15,265.05/21,065.15 = 8,550.57/x
  3. Step 3: Cross multiply
    15,265.05x = 21,065.15 × 8,550.57
  4. Step 4: Simplify right side
    15,265.05x = 180,118,996.88
  5. Step 5: Solve for x
    x = 180,118,996.88/15,265.05
  6. Step 6: Final answer
    x = 11,799.44

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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.