Home / 12,666.54-19,003.62-8,975.88

Finding the Fourth Proportional to 12,666.54, 19,003.62 and 8,975.88

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Solution

The fourth proportional to 12,666.54, 19,003.62 and 8,975.88 is: 13,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.54 : 19,003.62 = 8,975.88 : x
  2. Step 2: Convert to fraction form
    12,666.54/19,003.62 = 8,975.88/x
  3. Step 3: Cross multiply
    12,666.54x = 19,003.62 × 8,975.88
  4. Step 4: Simplify right side
    12,666.54x = 170,574,212.69
  5. Step 5: Solve for x
    x = 170,574,212.69/12,666.54
  6. Step 6: Final answer
    x = 13,466.52

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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.