Home / 7,429.90-10,253.61-4,072.97

Finding the Fourth Proportional to 7,429.90, 10,253.61 and 4,072.97

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Solution

The fourth proportional to 7,429.90, 10,253.61 and 4,072.97 is: 5,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.90 : 10,253.61 = 4,072.97 : x
  2. Step 2: Convert to fraction form
    7,429.90/10,253.61 = 4,072.97/x
  3. Step 3: Cross multiply
    7,429.90x = 10,253.61 × 4,072.97
  4. Step 4: Simplify right side
    7,429.90x = 41,762,617.83
  5. Step 5: Solve for x
    x = 41,762,617.83/7,429.90
  6. Step 6: Final answer
    x = 5,620.89

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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.