Home / 10,689.16-16,033.10-4,118.60

Finding the Fourth Proportional to 10,689.16, 16,033.10 and 4,118.60

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Solution

The fourth proportional to 10,689.16, 16,033.10 and 4,118.60 is: 6,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.16 : 16,033.10 = 4,118.60 : x
  2. Step 2: Convert to fraction form
    10,689.16/16,033.10 = 4,118.60/x
  3. Step 3: Cross multiply
    10,689.16x = 16,033.10 × 4,118.60
  4. Step 4: Simplify right side
    10,689.16x = 66,033,925.66
  5. Step 5: Solve for x
    x = 66,033,925.66/10,689.16
  6. Step 6: Final answer
    x = 6,177.65

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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.