Home / 7,989.23-11,979.35-5,493.35

Finding the Fourth Proportional to 7,989.23, 11,979.35 and 5,493.35

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Solution

The fourth proportional to 7,989.23, 11,979.35 and 5,493.35 is: 8,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.23 : 11,979.35 = 5,493.35 : x
  2. Step 2: Convert to fraction form
    7,989.23/11,979.35 = 5,493.35/x
  3. Step 3: Cross multiply
    7,989.23x = 11,979.35 × 5,493.35
  4. Step 4: Simplify right side
    7,989.23x = 65,806,762.32
  5. Step 5: Solve for x
    x = 65,806,762.32/7,989.23
  6. Step 6: Final answer
    x = 8,236.93

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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.