Home / 11,012.28-16,518.42-4,774.20

Finding the Fourth Proportional to 11,012.28, 16,518.42 and 4,774.20

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Solution

The fourth proportional to 11,012.28, 16,518.42 and 4,774.20 is: 7,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.28 : 16,518.42 = 4,774.20 : x
  2. Step 2: Convert to fraction form
    11,012.28/16,518.42 = 4,774.20/x
  3. Step 3: Cross multiply
    11,012.28x = 16,518.42 × 4,774.20
  4. Step 4: Simplify right side
    11,012.28x = 78,862,240.76
  5. Step 5: Solve for x
    x = 78,862,240.76/11,012.28
  6. Step 6: Final answer
    x = 7,161.30

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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.