Home / 6,516.80-9,778.68-4,326.56

Finding the Fourth Proportional to 6,516.80, 9,778.68 and 4,326.56

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Solution

The fourth proportional to 6,516.80, 9,778.68 and 4,326.56 is: 6,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.80 : 9,778.68 = 4,326.56 : x
  2. Step 2: Convert to fraction form
    6,516.80/9,778.68 = 4,326.56/x
  3. Step 3: Cross multiply
    6,516.80x = 9,778.68 × 4,326.56
  4. Step 4: Simplify right side
    6,516.80x = 42,308,045.74
  5. Step 5: Solve for x
    x = 42,308,045.74/6,516.80
  6. Step 6: Final answer
    x = 6,492.15

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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.