Home / 18,702.64-28,066.38-9,943.84

Finding the Fourth Proportional to 18,702.64, 28,066.38 and 9,943.84

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Solution

The fourth proportional to 18,702.64, 28,066.38 and 9,943.84 is: 14,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.64 : 28,066.38 = 9,943.84 : x
  2. Step 2: Convert to fraction form
    18,702.64/28,066.38 = 9,943.84/x
  3. Step 3: Cross multiply
    18,702.64x = 28,066.38 × 9,943.84
  4. Step 4: Simplify right side
    18,702.64x = 279,087,592.10
  5. Step 5: Solve for x
    x = 279,087,592.10/18,702.64
  6. Step 6: Final answer
    x = 14,922.36

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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.