Home / 7,420.13-10,239.77-4,277.33

Finding the Fourth Proportional to 7,420.13, 10,239.77 and 4,277.33

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Solution

The fourth proportional to 7,420.13, 10,239.77 and 4,277.33 is: 5,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.13 : 10,239.77 = 4,277.33 : x
  2. Step 2: Convert to fraction form
    7,420.13/10,239.77 = 4,277.33/x
  3. Step 3: Cross multiply
    7,420.13x = 10,239.77 × 4,277.33
  4. Step 4: Simplify right side
    7,420.13x = 43,798,834.91
  5. Step 5: Solve for x
    x = 43,798,834.91/7,420.13
  6. Step 6: Final answer
    x = 5,902.71

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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.