Home / 12,687,321.22-17,508,520.32-6,886,101.40

Finding the Fourth Proportional to 12,687,321.22, 17,508,520.32 and 6,886,101.40

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Solution

The fourth proportional to 12,687,321.22, 17,508,520.32 and 6,886,101.40 is: 9,502,829.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,321.22 : 17,508,520.32 = 6,886,101.40 : x
  2. Step 2: Convert to fraction form
    12,687,321.22/17,508,520.32 = 6,886,101.40/x
  3. Step 3: Cross multiply
    12,687,321.22x = 17,508,520.32 × 6,886,101.40
  4. Step 4: Simplify right side
    12,687,321.22x = 120,565,446,287,480.45
  5. Step 5: Solve for x
    x = 120,565,446,287,480.45/12,687,321.22
  6. Step 6: Final answer
    x = 9,502,829.18

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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.