Home / 13,915.68-20,876.96-4,055.04

Finding the Fourth Proportional to 13,915.68, 20,876.96 and 4,055.04

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Solution

The fourth proportional to 13,915.68, 20,876.96 and 4,055.04 is: 6,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.68 : 20,876.96 = 4,055.04 : x
  2. Step 2: Convert to fraction form
    13,915.68/20,876.96 = 4,055.04/x
  3. Step 3: Cross multiply
    13,915.68x = 20,876.96 × 4,055.04
  4. Step 4: Simplify right side
    13,915.68x = 84,656,918.02
  5. Step 5: Solve for x
    x = 84,656,918.02/13,915.68
  6. Step 6: Final answer
    x = 6,083.56

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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.