Home / 6,428.16-9,630.80-4,476.56

Finding the Fourth Proportional to 6,428.16, 9,630.80 and 4,476.56

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Solution

The fourth proportional to 6,428.16, 9,630.80 and 4,476.56 is: 6,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.16 : 9,630.80 = 4,476.56 : x
  2. Step 2: Convert to fraction form
    6,428.16/9,630.80 = 4,476.56/x
  3. Step 3: Cross multiply
    6,428.16x = 9,630.80 × 4,476.56
  4. Step 4: Simplify right side
    6,428.16x = 43,112,854.05
  5. Step 5: Solve for x
    x = 43,112,854.05/6,428.16
  6. Step 6: Final answer
    x = 6,706.87

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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.