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Finding the Fourth Proportional to 9,065.90, 13,523.51 and 8,915.54

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Solution

The fourth proportional to 9,065.90, 13,523.51 and 8,915.54 is: 13,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.90 : 13,523.51 = 8,915.54 : x
  2. Step 2: Convert to fraction form
    9,065.90/13,523.51 = 8,915.54/x
  3. Step 3: Cross multiply
    9,065.90x = 13,523.51 × 8,915.54
  4. Step 4: Simplify right side
    9,065.90x = 120,569,282.15
  5. Step 5: Solve for x
    x = 120,569,282.15/9,065.90
  6. Step 6: Final answer
    x = 13,299.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.