Home / 6,609.18-9,915.31-2,912.47

Finding the Fourth Proportional to 6,609.18, 9,915.31 and 2,912.47

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Solution

The fourth proportional to 6,609.18, 9,915.31 and 2,912.47 is: 4,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.18 : 9,915.31 = 2,912.47 : x
  2. Step 2: Convert to fraction form
    6,609.18/9,915.31 = 2,912.47/x
  3. Step 3: Cross multiply
    6,609.18x = 9,915.31 × 2,912.47
  4. Step 4: Simplify right side
    6,609.18x = 28,878,035.71
  5. Step 5: Solve for x
    x = 28,878,035.71/6,609.18
  6. Step 6: Final answer
    x = 4,369.38

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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.