Home / 12,370.26-17,070.94-6,781.62

Finding the Fourth Proportional to 12,370.26, 17,070.94 and 6,781.62

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Solution

The fourth proportional to 12,370.26, 17,070.94 and 6,781.62 is: 9,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.26 : 17,070.94 = 6,781.62 : x
  2. Step 2: Convert to fraction form
    12,370.26/17,070.94 = 6,781.62/x
  3. Step 3: Cross multiply
    12,370.26x = 17,070.94 × 6,781.62
  4. Step 4: Simplify right side
    12,370.26x = 115,768,628.12
  5. Step 5: Solve for x
    x = 115,768,628.12/12,370.26
  6. Step 6: Final answer
    x = 9,358.63

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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.