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Finding the Fourth Proportional to 13,274.76, 19,912.18 and 4,040.76

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Solution

The fourth proportional to 13,274.76, 19,912.18 and 4,040.76 is: 6,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.76 : 19,912.18 = 4,040.76 : x
  2. Step 2: Convert to fraction form
    13,274.76/19,912.18 = 4,040.76/x
  3. Step 3: Cross multiply
    13,274.76x = 19,912.18 × 4,040.76
  4. Step 4: Simplify right side
    13,274.76x = 80,460,340.46
  5. Step 5: Solve for x
    x = 80,460,340.46/13,274.76
  6. Step 6: Final answer
    x = 6,061.15

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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.