Home / 6,655.44-9,187.20-4,005.12

Finding the Fourth Proportional to 6,655.44, 9,187.20 and 4,005.12

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Solution

The fourth proportional to 6,655.44, 9,187.20 and 4,005.12 is: 5,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.44 : 9,187.20 = 4,005.12 : x
  2. Step 2: Convert to fraction form
    6,655.44/9,187.20 = 4,005.12/x
  3. Step 3: Cross multiply
    6,655.44x = 9,187.20 × 4,005.12
  4. Step 4: Simplify right side
    6,655.44x = 36,795,838.46
  5. Step 5: Solve for x
    x = 36,795,838.46/6,655.44
  6. Step 6: Final answer
    x = 5,528.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.