Home / 14,788.80-20,394.72-11,021.28

Finding the Fourth Proportional to 14,788.80, 20,394.72 and 11,021.28

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Solution

The fourth proportional to 14,788.80, 20,394.72 and 11,021.28 is: 15,199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,788.80 : 20,394.72 = 11,021.28 : x
  2. Step 2: Convert to fraction form
    14,788.80/20,394.72 = 11,021.28/x
  3. Step 3: Cross multiply
    14,788.80x = 20,394.72 × 11,021.28
  4. Step 4: Simplify right side
    14,788.80x = 224,775,919.64
  5. Step 5: Solve for x
    x = 224,775,919.64/14,788.80
  6. Step 6: Final answer
    x = 15,199.06

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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.