Home / 14,515.74-20,031.01-8,141.54

Finding the Fourth Proportional to 14,515.74, 20,031.01 and 8,141.54

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Solution

The fourth proportional to 14,515.74, 20,031.01 and 8,141.54 is: 11,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.74 : 20,031.01 = 8,141.54 : x
  2. Step 2: Convert to fraction form
    14,515.74/20,031.01 = 8,141.54/x
  3. Step 3: Cross multiply
    14,515.74x = 20,031.01 × 8,141.54
  4. Step 4: Simplify right side
    14,515.74x = 163,083,148.65
  5. Step 5: Solve for x
    x = 163,083,148.65/14,515.74
  6. Step 6: Final answer
    x = 11,234.92

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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.