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Finding the Fourth Proportional to 12,468.01, 18,718.35 and 8,771.98

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Solution

The fourth proportional to 12,468.01, 18,718.35 and 8,771.98 is: 13,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.01 : 18,718.35 = 8,771.98 : x
  2. Step 2: Convert to fraction form
    12,468.01/18,718.35 = 8,771.98/x
  3. Step 3: Cross multiply
    12,468.01x = 18,718.35 × 8,771.98
  4. Step 4: Simplify right side
    12,468.01x = 164,196,991.83
  5. Step 5: Solve for x
    x = 164,196,991.83/12,468.01
  6. Step 6: Final answer
    x = 13,169.46

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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.