Home / 13,115.92-18,084.22-10,717.02

Finding the Fourth Proportional to 13,115.92, 18,084.22 and 10,717.02

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Solution

The fourth proportional to 13,115.92, 18,084.22 and 10,717.02 is: 14,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.92 : 18,084.22 = 10,717.02 : x
  2. Step 2: Convert to fraction form
    13,115.92/18,084.22 = 10,717.02/x
  3. Step 3: Cross multiply
    13,115.92x = 18,084.22 × 10,717.02
  4. Step 4: Simplify right side
    13,115.92x = 193,808,947.42
  5. Step 5: Solve for x
    x = 193,808,947.42/13,115.92
  6. Step 6: Final answer
    x = 14,776.62

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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.