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Finding the Fourth Proportional to 18,274.52, 25,220.50 and 10,318.70

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Solution

The fourth proportional to 18,274.52, 25,220.50 and 10,318.70 is: 14,240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.52 : 25,220.50 = 10,318.70 : x
  2. Step 2: Convert to fraction form
    18,274.52/25,220.50 = 10,318.70/x
  3. Step 3: Cross multiply
    18,274.52x = 25,220.50 × 10,318.70
  4. Step 4: Simplify right side
    18,274.52x = 260,242,773.35
  5. Step 5: Solve for x
    x = 260,242,773.35/18,274.52
  6. Step 6: Final answer
    x = 14,240.74

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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.