Home / 12,951,272.79-17,872,779.06-7,150,063.86

Finding the Fourth Proportional to 12,951,272.79, 17,872,779.06 and 7,150,063.86

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Solution

The fourth proportional to 12,951,272.79, 17,872,779.06 and 7,150,063.86 is: 9,867,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951,272.79 : 17,872,779.06 = 7,150,063.86 : x
  2. Step 2: Convert to fraction form
    12,951,272.79/17,872,779.06 = 7,150,063.86/x
  3. Step 3: Cross multiply
    12,951,272.79x = 17,872,779.06 × 7,150,063.86
  4. Step 4: Simplify right side
    12,951,272.79x = 127,791,511,634,670.77
  5. Step 5: Solve for x
    x = 127,791,511,634,670.77/12,951,272.79
  6. Step 6: Final answer
    x = 9,867,100.61

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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.