Home / 13,788.70-19,028.30-7,501.08

Finding the Fourth Proportional to 13,788.70, 19,028.30 and 7,501.08

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Solution

The fourth proportional to 13,788.70, 19,028.30 and 7,501.08 is: 10,351.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.70 : 19,028.30 = 7,501.08 : x
  2. Step 2: Convert to fraction form
    13,788.70/19,028.30 = 7,501.08/x
  3. Step 3: Cross multiply
    13,788.70x = 19,028.30 × 7,501.08
  4. Step 4: Simplify right side
    13,788.70x = 142,732,800.56
  5. Step 5: Solve for x
    x = 142,732,800.56/13,788.70
  6. Step 6: Final answer
    x = 10,351.43

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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.