Home / 17,751.42-26,609.15-11,515.40

Finding the Fourth Proportional to 17,751.42, 26,609.15 and 11,515.40

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Solution

The fourth proportional to 17,751.42, 26,609.15 and 11,515.40 is: 17,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,751.42 : 26,609.15 = 11,515.40 : x
  2. Step 2: Convert to fraction form
    17,751.42/26,609.15 = 11,515.40/x
  3. Step 3: Cross multiply
    17,751.42x = 26,609.15 × 11,515.40
  4. Step 4: Simplify right side
    17,751.42x = 306,415,005.91
  5. Step 5: Solve for x
    x = 306,415,005.91/17,751.42
  6. Step 6: Final answer
    x = 17,261.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.