Home / 11,014.20-16,529.40-7,315.20

Finding the Fourth Proportional to 11,014.20, 16,529.40 and 7,315.20

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Solution

The fourth proportional to 11,014.20, 16,529.40 and 7,315.20 is: 10,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,014.20 : 16,529.40 = 7,315.20 : x
  2. Step 2: Convert to fraction form
    11,014.20/16,529.40 = 7,315.20/x
  3. Step 3: Cross multiply
    11,014.20x = 16,529.40 × 7,315.20
  4. Step 4: Simplify right side
    11,014.20x = 120,915,866.88
  5. Step 5: Solve for x
    x = 120,915,866.88/11,014.20
  6. Step 6: Final answer
    x = 10,978.18

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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.