Home / 13,590.24-20,355.22-10,447.12

Finding the Fourth Proportional to 13,590.24, 20,355.22 and 10,447.12

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Solution

The fourth proportional to 13,590.24, 20,355.22 and 10,447.12 is: 15,647.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.24 : 20,355.22 = 10,447.12 : x
  2. Step 2: Convert to fraction form
    13,590.24/20,355.22 = 10,447.12/x
  3. Step 3: Cross multiply
    13,590.24x = 20,355.22 × 10,447.12
  4. Step 4: Simplify right side
    13,590.24x = 212,653,425.97
  5. Step 5: Solve for x
    x = 212,653,425.97/13,590.24
  6. Step 6: Final answer
    x = 15,647.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.