Home / 11,487.20-17,228.50-3,165.08

Finding the Fourth Proportional to 11,487.20, 17,228.50 and 3,165.08

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Solution

The fourth proportional to 11,487.20, 17,228.50 and 3,165.08 is: 4,746.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.20 : 17,228.50 = 3,165.08 : x
  2. Step 2: Convert to fraction form
    11,487.20/17,228.50 = 3,165.08/x
  3. Step 3: Cross multiply
    11,487.20x = 17,228.50 × 3,165.08
  4. Step 4: Simplify right side
    11,487.20x = 54,529,580.78
  5. Step 5: Solve for x
    x = 54,529,580.78/11,487.20
  6. Step 6: Final answer
    x = 4,746.99

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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.