Home / 9,781.48-14,670.78-3,212.92

Finding the Fourth Proportional to 9,781.48, 14,670.78 and 3,212.92

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Solution

The fourth proportional to 9,781.48, 14,670.78 and 3,212.92 is: 4,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.48 : 14,670.78 = 3,212.92 : x
  2. Step 2: Convert to fraction form
    9,781.48/14,670.78 = 3,212.92/x
  3. Step 3: Cross multiply
    9,781.48x = 14,670.78 × 3,212.92
  4. Step 4: Simplify right side
    9,781.48x = 47,136,042.48
  5. Step 5: Solve for x
    x = 47,136,042.48/9,781.48
  6. Step 6: Final answer
    x = 4,818.91

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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.