Home / 18,890.64-28,336.91-7,204.77

Finding the Fourth Proportional to 18,890.64, 28,336.91 and 7,204.77

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Solution

The fourth proportional to 18,890.64, 28,336.91 and 7,204.77 is: 10,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.64 : 28,336.91 = 7,204.77 : x
  2. Step 2: Convert to fraction form
    18,890.64/28,336.91 = 7,204.77/x
  3. Step 3: Cross multiply
    18,890.64x = 28,336.91 × 7,204.77
  4. Step 4: Simplify right side
    18,890.64x = 204,160,883.04
  5. Step 5: Solve for x
    x = 204,160,883.04/18,890.64
  6. Step 6: Final answer
    x = 10,807.52

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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.