Home / 12,660.24-18,973.82-9,162.02

Finding the Fourth Proportional to 12,660.24, 18,973.82 and 9,162.02

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Solution

The fourth proportional to 12,660.24, 18,973.82 and 9,162.02 is: 13,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.24 : 18,973.82 = 9,162.02 : x
  2. Step 2: Convert to fraction form
    12,660.24/18,973.82 = 9,162.02/x
  3. Step 3: Cross multiply
    12,660.24x = 18,973.82 × 9,162.02
  4. Step 4: Simplify right side
    12,660.24x = 173,838,518.32
  5. Step 5: Solve for x
    x = 173,838,518.32/12,660.24
  6. Step 6: Final answer
    x = 13,731.06

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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.