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Finding the Fourth Proportional to 17,720.14, 26,570.99 and 8,357.65

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Solution

The fourth proportional to 17,720.14, 26,570.99 and 8,357.65 is: 12,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.14 : 26,570.99 = 8,357.65 : x
  2. Step 2: Convert to fraction form
    17,720.14/26,570.99 = 8,357.65/x
  3. Step 3: Cross multiply
    17,720.14x = 26,570.99 × 8,357.65
  4. Step 4: Simplify right side
    17,720.14x = 222,070,859.93
  5. Step 5: Solve for x
    x = 222,070,859.93/17,720.14
  6. Step 6: Final answer
    x = 12,532.12

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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.