Home / 10,028.03-13,839.02-5,778.77

Finding the Fourth Proportional to 10,028.03, 13,839.02 and 5,778.77

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Solution

The fourth proportional to 10,028.03, 13,839.02 and 5,778.77 is: 7,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.03 : 13,839.02 = 5,778.77 : x
  2. Step 2: Convert to fraction form
    10,028.03/13,839.02 = 5,778.77/x
  3. Step 3: Cross multiply
    10,028.03x = 13,839.02 × 5,778.77
  4. Step 4: Simplify right side
    10,028.03x = 79,972,415.52
  5. Step 5: Solve for x
    x = 79,972,415.52/10,028.03
  6. Step 6: Final answer
    x = 7,974.89

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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.