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Finding the Fourth Proportional to 12,274.54, 18,411.81 and 4,877.01

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Solution

The fourth proportional to 12,274.54, 18,411.81 and 4,877.01 is: 7,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.54 : 18,411.81 = 4,877.01 : x
  2. Step 2: Convert to fraction form
    12,274.54/18,411.81 = 4,877.01/x
  3. Step 3: Cross multiply
    12,274.54x = 18,411.81 × 4,877.01
  4. Step 4: Simplify right side
    12,274.54x = 89,794,563.20
  5. Step 5: Solve for x
    x = 89,794,563.20/12,274.54
  6. Step 6: Final answer
    x = 7,315.52

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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.