Home / 12,687,756.57-17,508,635.19-6,886,413.72

Finding the Fourth Proportional to 12,687,756.57, 17,508,635.19 and 6,886,413.72

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Solution

The fourth proportional to 12,687,756.57, 17,508,635.19 and 6,886,413.72 is: 9,502,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,756.57 : 17,508,635.19 = 6,886,413.72 : x
  2. Step 2: Convert to fraction form
    12,687,756.57/17,508,635.19 = 6,886,413.72/x
  3. Step 3: Cross multiply
    12,687,756.57x = 17,508,635.19 × 6,886,413.72
  4. Step 4: Simplify right side
    12,687,756.57x = 120,571,705,590,890.81
  5. Step 5: Solve for x
    x = 120,571,705,590,890.81/12,687,756.57
  6. Step 6: Final answer
    x = 9,502,996.45

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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.