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Finding the Fourth Proportional to 13,662.01, 18,854.99 and 8,360.35

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Solution

The fourth proportional to 13,662.01, 18,854.99 and 8,360.35 is: 11,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.01 : 18,854.99 = 8,360.35 : x
  2. Step 2: Convert to fraction form
    13,662.01/18,854.99 = 8,360.35/x
  3. Step 3: Cross multiply
    13,662.01x = 18,854.99 × 8,360.35
  4. Step 4: Simplify right side
    13,662.01x = 157,634,315.65
  5. Step 5: Solve for x
    x = 157,634,315.65/13,662.01
  6. Step 6: Final answer
    x = 11,538.15

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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.