Home / 6,637.47-9,919.98-6,112.05

Finding the Fourth Proportional to 6,637.47, 9,919.98 and 6,112.05

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Solution

The fourth proportional to 6,637.47, 9,919.98 and 6,112.05 is: 9,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,637.47 : 9,919.98 = 6,112.05 : x
  2. Step 2: Convert to fraction form
    6,637.47/9,919.98 = 6,112.05/x
  3. Step 3: Cross multiply
    6,637.47x = 9,919.98 × 6,112.05
  4. Step 4: Simplify right side
    6,637.47x = 60,631,413.76
  5. Step 5: Solve for x
    x = 60,631,413.76/6,637.47
  6. Step 6: Final answer
    x = 9,134.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.