Home / 8,415.16-12,623.25-3,485.18

Finding the Fourth Proportional to 8,415.16, 12,623.25 and 3,485.18

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Solution

The fourth proportional to 8,415.16, 12,623.25 and 3,485.18 is: 5,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.16 : 12,623.25 = 3,485.18 : x
  2. Step 2: Convert to fraction form
    8,415.16/12,623.25 = 3,485.18/x
  3. Step 3: Cross multiply
    8,415.16x = 12,623.25 × 3,485.18
  4. Step 4: Simplify right side
    8,415.16x = 43,994,343.06
  5. Step 5: Solve for x
    x = 43,994,343.06/8,415.16
  6. Step 6: Final answer
    x = 5,227.99

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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.