Home / 19,093.50-28,601.28-11,691.72

Finding the Fourth Proportional to 19,093.50, 28,601.28 and 11,691.72

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Solution

The fourth proportional to 19,093.50, 28,601.28 and 11,691.72 is: 17,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.50 : 28,601.28 = 11,691.72 : x
  2. Step 2: Convert to fraction form
    19,093.50/28,601.28 = 11,691.72/x
  3. Step 3: Cross multiply
    19,093.50x = 28,601.28 × 11,691.72
  4. Step 4: Simplify right side
    19,093.50x = 334,398,157.40
  5. Step 5: Solve for x
    x = 334,398,157.40/19,093.50
  6. Step 6: Final answer
    x = 17,513.72

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1.5x scale

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.