Home / 8,320.73-12,480.62-5,991.57

Finding the Fourth Proportional to 8,320.73, 12,480.62 and 5,991.57

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Solution

The fourth proportional to 8,320.73, 12,480.62 and 5,991.57 is: 8,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.73 : 12,480.62 = 5,991.57 : x
  2. Step 2: Convert to fraction form
    8,320.73/12,480.62 = 5,991.57/x
  3. Step 3: Cross multiply
    8,320.73x = 12,480.62 × 5,991.57
  4. Step 4: Simplify right side
    8,320.73x = 74,778,478.42
  5. Step 5: Solve for x
    x = 74,778,478.42/8,320.73
  6. Step 6: Final answer
    x = 8,987.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.