Home / 12,607.02-18,905.04-3,839.90

Finding the Fourth Proportional to 12,607.02, 18,905.04 and 3,839.90

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Solution

The fourth proportional to 12,607.02, 18,905.04 and 3,839.90 is: 5,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.02 : 18,905.04 = 3,839.90 : x
  2. Step 2: Convert to fraction form
    12,607.02/18,905.04 = 3,839.90/x
  3. Step 3: Cross multiply
    12,607.02x = 18,905.04 × 3,839.90
  4. Step 4: Simplify right side
    12,607.02x = 72,593,368.57
  5. Step 5: Solve for x
    x = 72,593,368.57/12,607.02
  6. Step 6: Final answer
    x = 5,758.17

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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.