Home / 13,788.85-19,028.51-7,501.22

Finding the Fourth Proportional to 13,788.85, 19,028.51 and 7,501.22

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Solution

The fourth proportional to 13,788.85, 19,028.51 and 7,501.22 is: 10,351.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.85 : 19,028.51 = 7,501.22 : x
  2. Step 2: Convert to fraction form
    13,788.85/19,028.51 = 7,501.22/x
  3. Step 3: Cross multiply
    13,788.85x = 19,028.51 × 7,501.22
  4. Step 4: Simplify right side
    13,788.85x = 142,737,039.78
  5. Step 5: Solve for x
    x = 142,737,039.78/13,788.85
  6. Step 6: Final answer
    x = 10,351.63

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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.