Home / 15,234.84-21,022.83-8,520.66

Finding the Fourth Proportional to 15,234.84, 21,022.83 and 8,520.66

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Solution

The fourth proportional to 15,234.84, 21,022.83 and 8,520.66 is: 11,757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234.84 : 21,022.83 = 8,520.66 : x
  2. Step 2: Convert to fraction form
    15,234.84/21,022.83 = 8,520.66/x
  3. Step 3: Cross multiply
    15,234.84x = 21,022.83 × 8,520.66
  4. Step 4: Simplify right side
    15,234.84x = 179,128,386.67
  5. Step 5: Solve for x
    x = 179,128,386.67/15,234.84
  6. Step 6: Final answer
    x = 11,757.81

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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.