Home / 19,352.90-26,695.64-12,171.40

Finding the Fourth Proportional to 19,352.90, 26,695.64 and 12,171.40

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Solution

The fourth proportional to 19,352.90, 26,695.64 and 12,171.40 is: 16,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,352.90 : 26,695.64 = 12,171.40 : x
  2. Step 2: Convert to fraction form
    19,352.90/26,695.64 = 12,171.40/x
  3. Step 3: Cross multiply
    19,352.90x = 26,695.64 × 12,171.40
  4. Step 4: Simplify right side
    19,352.90x = 324,923,312.70
  5. Step 5: Solve for x
    x = 324,923,312.70/19,352.90
  6. Step 6: Final answer
    x = 16,789.39

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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.