Home / 18,741.80-28,116.12-6,260.64

Finding the Fourth Proportional to 18,741.80, 28,116.12 and 6,260.64

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Solution

The fourth proportional to 18,741.80, 28,116.12 and 6,260.64 is: 9,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.80 : 28,116.12 = 6,260.64 : x
  2. Step 2: Convert to fraction form
    18,741.80/28,116.12 = 6,260.64/x
  3. Step 3: Cross multiply
    18,741.80x = 28,116.12 × 6,260.64
  4. Step 4: Simplify right side
    18,741.80x = 176,024,905.52
  5. Step 5: Solve for x
    x = 176,024,905.52/18,741.80
  6. Step 6: Final answer
    x = 9,392.10

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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.