Home / 18,737.49-25,880.19-13,693.62

Finding the Fourth Proportional to 18,737.49, 25,880.19 and 13,693.62

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Solution

The fourth proportional to 18,737.49, 25,880.19 and 13,693.62 is: 18,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.49 : 25,880.19 = 13,693.62 : x
  2. Step 2: Convert to fraction form
    18,737.49/25,880.19 = 13,693.62/x
  3. Step 3: Cross multiply
    18,737.49x = 25,880.19 × 13,693.62
  4. Step 4: Simplify right side
    18,737.49x = 354,393,487.39
  5. Step 5: Solve for x
    x = 354,393,487.39/18,737.49
  6. Step 6: Final answer
    x = 18,913.61

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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.