Home / 19,613.70-27,065.78-10,661.16

Finding the Fourth Proportional to 19,613.70, 27,065.78 and 10,661.16

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Solution

The fourth proportional to 19,613.70, 27,065.78 and 10,661.16 is: 14,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.70 : 27,065.78 = 10,661.16 : x
  2. Step 2: Convert to fraction form
    19,613.70/27,065.78 = 10,661.16/x
  3. Step 3: Cross multiply
    19,613.70x = 27,065.78 × 10,661.16
  4. Step 4: Simplify right side
    19,613.70x = 288,552,611.10
  5. Step 5: Solve for x
    x = 288,552,611.10/19,613.70
  6. Step 6: Final answer
    x = 14,711.79

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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.