Home / 16,689.12-23,033.61-9,617.82

Finding the Fourth Proportional to 16,689.12, 23,033.61 and 9,617.82

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Solution

The fourth proportional to 16,689.12, 23,033.61 and 9,617.82 is: 13,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.12 : 23,033.61 = 9,617.82 : x
  2. Step 2: Convert to fraction form
    16,689.12/23,033.61 = 9,617.82/x
  3. Step 3: Cross multiply
    16,689.12x = 23,033.61 × 9,617.82
  4. Step 4: Simplify right side
    16,689.12x = 221,533,114.93
  5. Step 5: Solve for x
    x = 221,533,114.93/16,689.12
  6. Step 6: Final answer
    x = 13,274.10

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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.