Home / 10,226.40-15,320.04-8,571.12

Finding the Fourth Proportional to 10,226.40, 15,320.04 and 8,571.12

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Solution

The fourth proportional to 10,226.40, 15,320.04 and 8,571.12 is: 12,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,226.40 : 15,320.04 = 8,571.12 : x
  2. Step 2: Convert to fraction form
    10,226.40/15,320.04 = 8,571.12/x
  3. Step 3: Cross multiply
    10,226.40x = 15,320.04 × 8,571.12
  4. Step 4: Simplify right side
    10,226.40x = 131,309,901.24
  5. Step 5: Solve for x
    x = 131,309,901.24/10,226.40
  6. Step 6: Final answer
    x = 12,840.29

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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.