Home / 7,756.80-11,617.74-5,989.44

Finding the Fourth Proportional to 7,756.80, 11,617.74 and 5,989.44

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Solution

The fourth proportional to 7,756.80, 11,617.74 and 5,989.44 is: 8,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.80 : 11,617.74 = 5,989.44 : x
  2. Step 2: Convert to fraction form
    7,756.80/11,617.74 = 5,989.44/x
  3. Step 3: Cross multiply
    7,756.80x = 11,617.74 × 5,989.44
  4. Step 4: Simplify right side
    7,756.80x = 69,583,756.67
  5. Step 5: Solve for x
    x = 69,583,756.67/7,756.80
  6. Step 6: Final answer
    x = 8,970.68

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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.