Home / 15,095.49-20,832.15-8,382.21

Finding the Fourth Proportional to 15,095.49, 20,832.15 and 8,382.21

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Solution

The fourth proportional to 15,095.49, 20,832.15 and 8,382.21 is: 11,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095.49 : 20,832.15 = 8,382.21 : x
  2. Step 2: Convert to fraction form
    15,095.49/20,832.15 = 8,382.21/x
  3. Step 3: Cross multiply
    15,095.49x = 20,832.15 × 8,382.21
  4. Step 4: Simplify right side
    15,095.49x = 174,619,456.05
  5. Step 5: Solve for x
    x = 174,619,456.05/15,095.49
  6. Step 6: Final answer
    x = 11,567.66

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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.