Home / 14,114.80-21,175.04-4,253.68

Finding the Fourth Proportional to 14,114.80, 21,175.04 and 4,253.68

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Solution

The fourth proportional to 14,114.80, 21,175.04 and 4,253.68 is: 6,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.80 : 21,175.04 = 4,253.68 : x
  2. Step 2: Convert to fraction form
    14,114.80/21,175.04 = 4,253.68/x
  3. Step 3: Cross multiply
    14,114.80x = 21,175.04 × 4,253.68
  4. Step 4: Simplify right side
    14,114.80x = 90,071,844.15
  5. Step 5: Solve for x
    x = 90,071,844.15/14,114.80
  6. Step 6: Final answer
    x = 6,381.38

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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.