Home / 15,767.15-21,743.96-11,511.45

Finding the Fourth Proportional to 15,767.15, 21,743.96 and 11,511.45

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Solution

The fourth proportional to 15,767.15, 21,743.96 and 11,511.45 is: 15,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.15 : 21,743.96 = 11,511.45 : x
  2. Step 2: Convert to fraction form
    15,767.15/21,743.96 = 11,511.45/x
  3. Step 3: Cross multiply
    15,767.15x = 21,743.96 × 11,511.45
  4. Step 4: Simplify right side
    15,767.15x = 250,304,450.78
  5. Step 5: Solve for x
    x = 250,304,450.78/15,767.15
  6. Step 6: Final answer
    x = 15,875.06

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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.