Home / 13,812.28-19,060.04-8,146.76

Finding the Fourth Proportional to 13,812.28, 19,060.04 and 8,146.76

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Solution

The fourth proportional to 13,812.28, 19,060.04 and 8,146.76 is: 11,241.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.28 : 19,060.04 = 8,146.76 : x
  2. Step 2: Convert to fraction form
    13,812.28/19,060.04 = 8,146.76/x
  3. Step 3: Cross multiply
    13,812.28x = 19,060.04 × 8,146.76
  4. Step 4: Simplify right side
    13,812.28x = 155,277,571.47
  5. Step 5: Solve for x
    x = 155,277,571.47/13,812.28
  6. Step 6: Final answer
    x = 11,241.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.