Home / 13,157.46-19,739.66-6,915.74

Finding the Fourth Proportional to 13,157.46, 19,739.66 and 6,915.74

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Solution

The fourth proportional to 13,157.46, 19,739.66 and 6,915.74 is: 10,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.46 : 19,739.66 = 6,915.74 : x
  2. Step 2: Convert to fraction form
    13,157.46/19,739.66 = 6,915.74/x
  3. Step 3: Cross multiply
    13,157.46x = 19,739.66 × 6,915.74
  4. Step 4: Simplify right side
    13,157.46x = 136,514,222.97
  5. Step 5: Solve for x
    x = 136,514,222.97/13,157.46
  6. Step 6: Final answer
    x = 10,375.42

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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.