Home / 13,145.02-19,788.94-11,788.88

Finding the Fourth Proportional to 13,145.02, 19,788.94 and 11,788.88

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Solution

The fourth proportional to 13,145.02, 19,788.94 and 11,788.88 is: 17,747.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.02 : 19,788.94 = 11,788.88 : x
  2. Step 2: Convert to fraction form
    13,145.02/19,788.94 = 11,788.88/x
  3. Step 3: Cross multiply
    13,145.02x = 19,788.94 × 11,788.88
  4. Step 4: Simplify right side
    13,145.02x = 233,289,354.78
  5. Step 5: Solve for x
    x = 233,289,354.78/13,145.02
  6. Step 6: Final answer
    x = 17,747.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.