Home / 14,286.48-19,714.59-7,912.89

Finding the Fourth Proportional to 14,286.48, 19,714.59 and 7,912.89

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Solution

The fourth proportional to 14,286.48, 19,714.59 and 7,912.89 is: 10,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.48 : 19,714.59 = 7,912.89 : x
  2. Step 2: Convert to fraction form
    14,286.48/19,714.59 = 7,912.89/x
  3. Step 3: Cross multiply
    14,286.48x = 19,714.59 × 7,912.89
  4. Step 4: Simplify right side
    14,286.48x = 155,999,382.07
  5. Step 5: Solve for x
    x = 155,999,382.07/14,286.48
  6. Step 6: Final answer
    x = 10,919.37

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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.