Home / 11,781.90-16,259.84-6,476.72

Finding the Fourth Proportional to 11,781.90, 16,259.84 and 6,476.72

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Solution

The fourth proportional to 11,781.90, 16,259.84 and 6,476.72 is: 8,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.90 : 16,259.84 = 6,476.72 : x
  2. Step 2: Convert to fraction form
    11,781.90/16,259.84 = 6,476.72/x
  3. Step 3: Cross multiply
    11,781.90x = 16,259.84 × 6,476.72
  4. Step 4: Simplify right side
    11,781.90x = 105,310,357.89
  5. Step 5: Solve for x
    x = 105,310,357.89/11,781.90
  6. Step 6: Final answer
    x = 8,938.32

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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.