Home / 19,215.55-26,516.91-10,717.71

Finding the Fourth Proportional to 19,215.55, 26,516.91 and 10,717.71

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Solution

The fourth proportional to 19,215.55, 26,516.91 and 10,717.71 is: 14,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.55 : 26,516.91 = 10,717.71 : x
  2. Step 2: Convert to fraction form
    19,215.55/26,516.91 = 10,717.71/x
  3. Step 3: Cross multiply
    19,215.55x = 26,516.91 × 10,717.71
  4. Step 4: Simplify right side
    19,215.55x = 284,200,551.48
  5. Step 5: Solve for x
    x = 284,200,551.48/19,215.55
  6. Step 6: Final answer
    x = 14,790.13

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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.