Home / 11,116.66-16,694.09-9,870.06

Finding the Fourth Proportional to 11,116.66, 16,694.09 and 9,870.06

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Solution

The fourth proportional to 11,116.66, 16,694.09 and 9,870.06 is: 14,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.66 : 16,694.09 = 9,870.06 : x
  2. Step 2: Convert to fraction form
    11,116.66/16,694.09 = 9,870.06/x
  3. Step 3: Cross multiply
    11,116.66x = 16,694.09 × 9,870.06
  4. Step 4: Simplify right side
    11,116.66x = 164,771,669.95
  5. Step 5: Solve for x
    x = 164,771,669.95/11,116.66
  6. Step 6: Final answer
    x = 14,822.05

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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.