Home / 8,760.36-13,137.66-2,915.40

Finding the Fourth Proportional to 8,760.36, 13,137.66 and 2,915.40

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Solution

The fourth proportional to 8,760.36, 13,137.66 and 2,915.40 is: 4,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.36 : 13,137.66 = 2,915.40 : x
  2. Step 2: Convert to fraction form
    8,760.36/13,137.66 = 2,915.40/x
  3. Step 3: Cross multiply
    8,760.36x = 13,137.66 × 2,915.40
  4. Step 4: Simplify right side
    8,760.36x = 38,301,533.96
  5. Step 5: Solve for x
    x = 38,301,533.96/8,760.36
  6. Step 6: Final answer
    x = 4,372.14

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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.