Home / 19,416.11-26,778.83-12,602.69

Finding the Fourth Proportional to 19,416.11, 26,778.83 and 12,602.69

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Solution

The fourth proportional to 19,416.11, 26,778.83 and 12,602.69 is: 17,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.11 : 26,778.83 = 12,602.69 : x
  2. Step 2: Convert to fraction form
    19,416.11/26,778.83 = 12,602.69/x
  3. Step 3: Cross multiply
    19,416.11x = 26,778.83 × 12,602.69
  4. Step 4: Simplify right side
    19,416.11x = 337,485,096.15
  5. Step 5: Solve for x
    x = 337,485,096.15/19,416.11
  6. Step 6: Final answer
    x = 17,381.71

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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.