Home / 13,915.64-20,876.88-4,055.01

Finding the Fourth Proportional to 13,915.64, 20,876.88 and 4,055.01

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Solution

The fourth proportional to 13,915.64, 20,876.88 and 4,055.01 is: 6,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.64 : 20,876.88 = 4,055.01 : x
  2. Step 2: Convert to fraction form
    13,915.64/20,876.88 = 4,055.01/x
  3. Step 3: Cross multiply
    13,915.64x = 20,876.88 × 4,055.01
  4. Step 4: Simplify right side
    13,915.64x = 84,655,936.89
  5. Step 5: Solve for x
    x = 84,655,936.89/13,915.64
  6. Step 6: Final answer
    x = 6,083.51

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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.