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Finding the Fourth Proportional to 12,846.79, 19,270.23 and 3,612.79

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Solution

The fourth proportional to 12,846.79, 19,270.23 and 3,612.79 is: 5,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.79 : 19,270.23 = 3,612.79 : x
  2. Step 2: Convert to fraction form
    12,846.79/19,270.23 = 3,612.79/x
  3. Step 3: Cross multiply
    12,846.79x = 19,270.23 × 3,612.79
  4. Step 4: Simplify right side
    12,846.79x = 69,619,294.24
  5. Step 5: Solve for x
    x = 69,619,294.24/12,846.79
  6. Step 6: Final answer
    x = 5,419.20

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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.