Home / 7,459.87-11,168.93-3,989.47

Finding the Fourth Proportional to 7,459.87, 11,168.93 and 3,989.47

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Solution

The fourth proportional to 7,459.87, 11,168.93 and 3,989.47 is: 5,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.87 : 11,168.93 = 3,989.47 : x
  2. Step 2: Convert to fraction form
    7,459.87/11,168.93 = 3,989.47/x
  3. Step 3: Cross multiply
    7,459.87x = 11,168.93 × 3,989.47
  4. Step 4: Simplify right side
    7,459.87x = 44,558,091.22
  5. Step 5: Solve for x
    x = 44,558,091.22/7,459.87
  6. Step 6: Final answer
    x = 5,973.04

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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.