Home / 19,520.39-26,951.16-13,156.46

Finding the Fourth Proportional to 19,520.39, 26,951.16 and 13,156.46

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Solution

The fourth proportional to 19,520.39, 26,951.16 and 13,156.46 is: 18,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.39 : 26,951.16 = 13,156.46 : x
  2. Step 2: Convert to fraction form
    19,520.39/26,951.16 = 13,156.46/x
  3. Step 3: Cross multiply
    19,520.39x = 26,951.16 × 13,156.46
  4. Step 4: Simplify right side
    19,520.39x = 354,581,874.14
  5. Step 5: Solve for x
    x = 354,581,874.14/19,520.39
  6. Step 6: Final answer
    x = 18,164.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.