Home / 12,721,406.73-17,555,528.01-6,920,174.64

Finding the Fourth Proportional to 12,721,406.73, 17,555,528.01 and 6,920,174.64

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Solution

The fourth proportional to 12,721,406.73, 17,555,528.01 and 6,920,174.64 is: 9,549,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721,406.73 : 17,555,528.01 = 6,920,174.64 : x
  2. Step 2: Convert to fraction form
    12,721,406.73/17,555,528.01 = 6,920,174.64/x
  3. Step 3: Cross multiply
    12,721,406.73x = 17,555,528.01 × 6,920,174.64
  4. Step 4: Simplify right side
    12,721,406.73x = 121,487,319,726,611.67
  5. Step 5: Solve for x
    x = 121,487,319,726,611.67/12,721,406.73
  6. Step 6: Final answer
    x = 9,549,833.78

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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.