Home / 13,229.78-19,852.43-4,915.53

Finding the Fourth Proportional to 13,229.78, 19,852.43 and 4,915.53

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Solution

The fourth proportional to 13,229.78, 19,852.43 and 4,915.53 is: 7,376.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.78 : 19,852.43 = 4,915.53 : x
  2. Step 2: Convert to fraction form
    13,229.78/19,852.43 = 4,915.53/x
  3. Step 3: Cross multiply
    13,229.78x = 19,852.43 × 4,915.53
  4. Step 4: Simplify right side
    13,229.78x = 97,585,190.66
  5. Step 5: Solve for x
    x = 97,585,190.66/13,229.78
  6. Step 6: Final answer
    x = 7,376.18

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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.