Home / 7,176.60-9,908.54-6,418.02

Finding the Fourth Proportional to 7,176.60, 9,908.54 and 6,418.02

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Solution

The fourth proportional to 7,176.60, 9,908.54 and 6,418.02 is: 8,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.60 : 9,908.54 = 6,418.02 : x
  2. Step 2: Convert to fraction form
    7,176.60/9,908.54 = 6,418.02/x
  3. Step 3: Cross multiply
    7,176.60x = 9,908.54 × 6,418.02
  4. Step 4: Simplify right side
    7,176.60x = 63,593,163.24
  5. Step 5: Solve for x
    x = 63,593,163.24/7,176.60
  6. Step 6: Final answer
    x = 8,861.18

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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.