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Finding the Fourth Proportional to 12,559.36, 18,842.14 and 8,868.82

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Solution

The fourth proportional to 12,559.36, 18,842.14 and 8,868.82 is: 13,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.36 : 18,842.14 = 8,868.82 : x
  2. Step 2: Convert to fraction form
    12,559.36/18,842.14 = 8,868.82/x
  3. Step 3: Cross multiply
    12,559.36x = 18,842.14 × 8,868.82
  4. Step 4: Simplify right side
    12,559.36x = 167,107,548.07
  5. Step 5: Solve for x
    x = 167,107,548.07/12,559.36
  6. Step 6: Final answer
    x = 13,305.42

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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.