Home / 15,166.91-20,943.23-9,511.13

Finding the Fourth Proportional to 15,166.91, 20,943.23 and 9,511.13

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Solution

The fourth proportional to 15,166.91, 20,943.23 and 9,511.13 is: 13,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,166.91 : 20,943.23 = 9,511.13 : x
  2. Step 2: Convert to fraction form
    15,166.91/20,943.23 = 9,511.13/x
  3. Step 3: Cross multiply
    15,166.91x = 20,943.23 × 9,511.13
  4. Step 4: Simplify right side
    15,166.91x = 199,193,678.43
  5. Step 5: Solve for x
    x = 199,193,678.43/15,166.91
  6. Step 6: Final answer
    x = 13,133.44

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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.