Home / 13,717.21-20,576.78-5,818.83

Finding the Fourth Proportional to 13,717.21, 20,576.78 and 5,818.83

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Solution

The fourth proportional to 13,717.21, 20,576.78 and 5,818.83 is: 8,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.21 : 20,576.78 = 5,818.83 : x
  2. Step 2: Convert to fraction form
    13,717.21/20,576.78 = 5,818.83/x
  3. Step 3: Cross multiply
    13,717.21x = 20,576.78 × 5,818.83
  4. Step 4: Simplify right side
    13,717.21x = 119,732,868.13
  5. Step 5: Solve for x
    x = 119,732,868.13/13,717.21
  6. Step 6: Final answer
    x = 8,728.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.