Home / 12,370.56-17,071.32-6,781.56

Finding the Fourth Proportional to 12,370.56, 17,071.32 and 6,781.56

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Solution

The fourth proportional to 12,370.56, 17,071.32 and 6,781.56 is: 9,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.56 : 17,071.32 = 6,781.56 : x
  2. Step 2: Convert to fraction form
    12,370.56/17,071.32 = 6,781.56/x
  3. Step 3: Cross multiply
    12,370.56x = 17,071.32 × 6,781.56
  4. Step 4: Simplify right side
    12,370.56x = 115,770,180.86
  5. Step 5: Solve for x
    x = 115,770,180.86/12,370.56
  6. Step 6: Final answer
    x = 9,358.52

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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.