Home / 14,140.76-19,512.07-8,171.27

Finding the Fourth Proportional to 14,140.76, 19,512.07 and 8,171.27

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Solution

The fourth proportional to 14,140.76, 19,512.07 and 8,171.27 is: 11,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.76 : 19,512.07 = 8,171.27 : x
  2. Step 2: Convert to fraction form
    14,140.76/19,512.07 = 8,171.27/x
  3. Step 3: Cross multiply
    14,140.76x = 19,512.07 × 8,171.27
  4. Step 4: Simplify right side
    14,140.76x = 159,438,498.03
  5. Step 5: Solve for x
    x = 159,438,498.03/14,140.76
  6. Step 6: Final answer
    x = 11,275.10

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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.