Home / 14,012.15-19,336.19-7,638.62

Finding the Fourth Proportional to 14,012.15, 19,336.19 and 7,638.62

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Solution

The fourth proportional to 14,012.15, 19,336.19 and 7,638.62 is: 10,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.15 : 19,336.19 = 7,638.62 : x
  2. Step 2: Convert to fraction form
    14,012.15/19,336.19 = 7,638.62/x
  3. Step 3: Cross multiply
    14,012.15x = 19,336.19 × 7,638.62
  4. Step 4: Simplify right side
    14,012.15x = 147,701,672.78
  5. Step 5: Solve for x
    x = 147,701,672.78/14,012.15
  6. Step 6: Final answer
    x = 10,540.98

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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.