Home / 11,015.12-16,528.08-5,172.24

Finding the Fourth Proportional to 11,015.12, 16,528.08 and 5,172.24

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Solution

The fourth proportional to 11,015.12, 16,528.08 and 5,172.24 is: 7,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.12 : 16,528.08 = 5,172.24 : x
  2. Step 2: Convert to fraction form
    11,015.12/16,528.08 = 5,172.24/x
  3. Step 3: Cross multiply
    11,015.12x = 16,528.08 × 5,172.24
  4. Step 4: Simplify right side
    11,015.12x = 85,487,196.50
  5. Step 5: Solve for x
    x = 85,487,196.50/11,015.12
  6. Step 6: Final answer
    x = 7,760.90

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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.