Home / 11,118.25-16,680.71-6,437.17

Finding the Fourth Proportional to 11,118.25, 16,680.71 and 6,437.17

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Solution

The fourth proportional to 11,118.25, 16,680.71 and 6,437.17 is: 9,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.25 : 16,680.71 = 6,437.17 : x
  2. Step 2: Convert to fraction form
    11,118.25/16,680.71 = 6,437.17/x
  3. Step 3: Cross multiply
    11,118.25x = 16,680.71 × 6,437.17
  4. Step 4: Simplify right side
    11,118.25x = 107,376,565.99
  5. Step 5: Solve for x
    x = 107,376,565.99/11,118.25
  6. Step 6: Final answer
    x = 9,657.69

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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.