Home / 11,188.32-16,780.08-4,612.80

Finding the Fourth Proportional to 11,188.32, 16,780.08 and 4,612.80

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Solution

The fourth proportional to 11,188.32, 16,780.08 and 4,612.80 is: 6,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.32 : 16,780.08 = 4,612.80 : x
  2. Step 2: Convert to fraction form
    11,188.32/16,780.08 = 4,612.80/x
  3. Step 3: Cross multiply
    11,188.32x = 16,780.08 × 4,612.80
  4. Step 4: Simplify right side
    11,188.32x = 77,403,153.02
  5. Step 5: Solve for x
    x = 77,403,153.02/11,188.32
  6. Step 6: Final answer
    x = 6,918.21

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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.