Home / 18,772.50-28,186.44-10,468.74

Finding the Fourth Proportional to 18,772.50, 28,186.44 and 10,468.74

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Solution

The fourth proportional to 18,772.50, 28,186.44 and 10,468.74 is: 15,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.50 : 28,186.44 = 10,468.74 : x
  2. Step 2: Convert to fraction form
    18,772.50/28,186.44 = 10,468.74/x
  3. Step 3: Cross multiply
    18,772.50x = 28,186.44 × 10,468.74
  4. Step 4: Simplify right side
    18,772.50x = 295,076,511.89
  5. Step 5: Solve for x
    x = 295,076,511.89/18,772.50
  6. Step 6: Final answer
    x = 15,718.55

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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.