Home / 9,915.36-14,868.96-3,675.78

Finding the Fourth Proportional to 9,915.36, 14,868.96 and 3,675.78

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Solution

The fourth proportional to 9,915.36, 14,868.96 and 3,675.78 is: 5,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.36 : 14,868.96 = 3,675.78 : x
  2. Step 2: Convert to fraction form
    9,915.36/14,868.96 = 3,675.78/x
  3. Step 3: Cross multiply
    9,915.36x = 14,868.96 × 3,675.78
  4. Step 4: Simplify right side
    9,915.36x = 54,655,025.79
  5. Step 5: Solve for x
    x = 54,655,025.79/9,915.36
  6. Step 6: Final answer
    x = 5,512.16

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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.