Home / 13,935.62-20,902.88-3,547.64

Finding the Fourth Proportional to 13,935.62, 20,902.88 and 3,547.64

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Solution

The fourth proportional to 13,935.62, 20,902.88 and 3,547.64 is: 5,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.62 : 20,902.88 = 3,547.64 : x
  2. Step 2: Convert to fraction form
    13,935.62/20,902.88 = 3,547.64/x
  3. Step 3: Cross multiply
    13,935.62x = 20,902.88 × 3,547.64
  4. Step 4: Simplify right side
    13,935.62x = 74,155,893.20
  5. Step 5: Solve for x
    x = 74,155,893.20/13,935.62
  6. Step 6: Final answer
    x = 5,321.32

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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.