Home / 11,118.66-16,682.64-4,875.45

Finding the Fourth Proportional to 11,118.66, 16,682.64 and 4,875.45

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Solution

The fourth proportional to 11,118.66, 16,682.64 and 4,875.45 is: 7,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.66 : 16,682.64 = 4,875.45 : x
  2. Step 2: Convert to fraction form
    11,118.66/16,682.64 = 4,875.45/x
  3. Step 3: Cross multiply
    11,118.66x = 16,682.64 × 4,875.45
  4. Step 4: Simplify right side
    11,118.66x = 81,335,377.19
  5. Step 5: Solve for x
    x = 81,335,377.19/11,118.66
  6. Step 6: Final answer
    x = 7,315.21

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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.