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Finding the Fourth Proportional to 13,195.60, 19,797.95 and 8,259.36

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Solution

The fourth proportional to 13,195.60, 19,797.95 and 8,259.36 is: 12,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.60 : 19,797.95 = 8,259.36 : x
  2. Step 2: Convert to fraction form
    13,195.60/19,797.95 = 8,259.36/x
  3. Step 3: Cross multiply
    13,195.60x = 19,797.95 × 8,259.36
  4. Step 4: Simplify right side
    13,195.60x = 163,518,342.72
  5. Step 5: Solve for x
    x = 163,518,342.72/13,195.60
  6. Step 6: Final answer
    x = 12,391.89

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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.