Home / 12,370.48-17,071.56-6,781.52

Finding the Fourth Proportional to 12,370.48, 17,071.56 and 6,781.52

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Solution

The fourth proportional to 12,370.48, 17,071.56 and 6,781.52 is: 9,358.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.48 : 17,071.56 = 6,781.52 : x
  2. Step 2: Convert to fraction form
    12,370.48/17,071.56 = 6,781.52/x
  3. Step 3: Cross multiply
    12,370.48x = 17,071.56 × 6,781.52
  4. Step 4: Simplify right side
    12,370.48x = 115,771,125.57
  5. Step 5: Solve for x
    x = 115,771,125.57/12,370.48
  6. Step 6: Final answer
    x = 9,358.66

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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.