Home / 13,455.52-20,170.98-5,664.88

Finding the Fourth Proportional to 13,455.52, 20,170.98 and 5,664.88

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Solution

The fourth proportional to 13,455.52, 20,170.98 and 5,664.88 is: 8,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.52 : 20,170.98 = 5,664.88 : x
  2. Step 2: Convert to fraction form
    13,455.52/20,170.98 = 5,664.88/x
  3. Step 3: Cross multiply
    13,455.52x = 20,170.98 × 5,664.88
  4. Step 4: Simplify right side
    13,455.52x = 114,266,181.18
  5. Step 5: Solve for x
    x = 114,266,181.18/13,455.52
  6. Step 6: Final answer
    x = 8,492.14

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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.