Home / 14,115.07-21,175.35-4,253.86

Finding the Fourth Proportional to 14,115.07, 21,175.35 and 4,253.86

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Solution

The fourth proportional to 14,115.07, 21,175.35 and 4,253.86 is: 6,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.07 : 21,175.35 = 4,253.86 : x
  2. Step 2: Convert to fraction form
    14,115.07/21,175.35 = 4,253.86/x
  3. Step 3: Cross multiply
    14,115.07x = 21,175.35 × 4,253.86
  4. Step 4: Simplify right side
    14,115.07x = 90,076,974.35
  5. Step 5: Solve for x
    x = 90,076,974.35/14,115.07
  6. Step 6: Final answer
    x = 6,381.62

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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.