Home / 13,788.68-19,028.58-8,480.36

Finding the Fourth Proportional to 13,788.68, 19,028.58 and 8,480.36

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Solution

The fourth proportional to 13,788.68, 19,028.58 and 8,480.36 is: 11,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.68 : 19,028.58 = 8,480.36 : x
  2. Step 2: Convert to fraction form
    13,788.68/19,028.58 = 8,480.36/x
  3. Step 3: Cross multiply
    13,788.68x = 19,028.58 × 8,480.36
  4. Step 4: Simplify right side
    13,788.68x = 161,369,208.69
  5. Step 5: Solve for x
    x = 161,369,208.69/13,788.68
  6. Step 6: Final answer
    x = 11,703.02

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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.