Home / 13,219.74-19,803.45-9,936.54

Finding the Fourth Proportional to 13,219.74, 19,803.45 and 9,936.54

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Solution

The fourth proportional to 13,219.74, 19,803.45 and 9,936.54 is: 14,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.74 : 19,803.45 = 9,936.54 : x
  2. Step 2: Convert to fraction form
    13,219.74/19,803.45 = 9,936.54/x
  3. Step 3: Cross multiply
    13,219.74x = 19,803.45 × 9,936.54
  4. Step 4: Simplify right side
    13,219.74x = 196,777,773.06
  5. Step 5: Solve for x
    x = 196,777,773.06/13,219.74
  6. Step 6: Final answer
    x = 14,885.15

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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.