Home / 8,315.19-12,474.32-2,768.01

Finding the Fourth Proportional to 8,315.19, 12,474.32 and 2,768.01

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Solution

The fourth proportional to 8,315.19, 12,474.32 and 2,768.01 is: 4,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.19 : 12,474.32 = 2,768.01 : x
  2. Step 2: Convert to fraction form
    8,315.19/12,474.32 = 2,768.01/x
  3. Step 3: Cross multiply
    8,315.19x = 12,474.32 × 2,768.01
  4. Step 4: Simplify right side
    8,315.19x = 34,529,028.66
  5. Step 5: Solve for x
    x = 34,529,028.66/8,315.19
  6. Step 6: Final answer
    x = 4,152.52

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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.