Home / 12,997.06-19,492.61-3,637.74

Finding the Fourth Proportional to 12,997.06, 19,492.61 and 3,637.74

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Solution

The fourth proportional to 12,997.06, 19,492.61 and 3,637.74 is: 5,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.06 : 19,492.61 = 3,637.74 : x
  2. Step 2: Convert to fraction form
    12,997.06/19,492.61 = 3,637.74/x
  3. Step 3: Cross multiply
    12,997.06x = 19,492.61 × 3,637.74
  4. Step 4: Simplify right side
    12,997.06x = 70,909,047.10
  5. Step 5: Solve for x
    x = 70,909,047.10/12,997.06
  6. Step 6: Final answer
    x = 5,455.78

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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.