Home / 15,226.26-21,012.17-8,511.87

Finding the Fourth Proportional to 15,226.26, 21,012.17 and 8,511.87

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Solution

The fourth proportional to 15,226.26, 21,012.17 and 8,511.87 is: 11,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.26 : 21,012.17 = 8,511.87 : x
  2. Step 2: Convert to fraction form
    15,226.26/21,012.17 = 8,511.87/x
  3. Step 3: Cross multiply
    15,226.26x = 21,012.17 × 8,511.87
  4. Step 4: Simplify right side
    15,226.26x = 178,852,859.46
  5. Step 5: Solve for x
    x = 178,852,859.46/15,226.26
  6. Step 6: Final answer
    x = 11,746.34

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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.