Home / 14,140.90-19,512.27-8,171.41

Finding the Fourth Proportional to 14,140.90, 19,512.27 and 8,171.41

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Solution

The fourth proportional to 14,140.90, 19,512.27 and 8,171.41 is: 11,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.90 : 19,512.27 = 8,171.41 : x
  2. Step 2: Convert to fraction form
    14,140.90/19,512.27 = 8,171.41/x
  3. Step 3: Cross multiply
    14,140.90x = 19,512.27 × 8,171.41
  4. Step 4: Simplify right side
    14,140.90x = 159,442,758.20
  5. Step 5: Solve for x
    x = 159,442,758.20/14,140.90
  6. Step 6: Final answer
    x = 11,275.29

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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.