Home / 11,781.06-16,257.60-6,475.80

Finding the Fourth Proportional to 11,781.06, 16,257.60 and 6,475.80

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Solution

The fourth proportional to 11,781.06, 16,257.60 and 6,475.80 is: 8,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.06 : 16,257.60 = 6,475.80 : x
  2. Step 2: Convert to fraction form
    11,781.06/16,257.60 = 6,475.80/x
  3. Step 3: Cross multiply
    11,781.06x = 16,257.60 × 6,475.80
  4. Step 4: Simplify right side
    11,781.06x = 105,280,966.08
  5. Step 5: Solve for x
    x = 105,280,966.08/11,781.06
  6. Step 6: Final answer
    x = 8,936.46

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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.