Home / 14,185.05-21,290.70-7,170.01

Finding the Fourth Proportional to 14,185.05, 21,290.70 and 7,170.01

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Solution

The fourth proportional to 14,185.05, 21,290.70 and 7,170.01 is: 10,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185.05 : 21,290.70 = 7,170.01 : x
  2. Step 2: Convert to fraction form
    14,185.05/21,290.70 = 7,170.01/x
  3. Step 3: Cross multiply
    14,185.05x = 21,290.70 × 7,170.01
  4. Step 4: Simplify right side
    14,185.05x = 152,654,531.91
  5. Step 5: Solve for x
    x = 152,654,531.91/14,185.05
  6. Step 6: Final answer
    x = 10,761.65

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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.