Home / 13,647.86-20,467.43-5,325.85

Finding the Fourth Proportional to 13,647.86, 20,467.43 and 5,325.85

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Solution

The fourth proportional to 13,647.86, 20,467.43 and 5,325.85 is: 7,987.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.86 : 20,467.43 = 5,325.85 : x
  2. Step 2: Convert to fraction form
    13,647.86/20,467.43 = 5,325.85/x
  3. Step 3: Cross multiply
    13,647.86x = 20,467.43 × 5,325.85
  4. Step 4: Simplify right side
    13,647.86x = 109,006,462.07
  5. Step 5: Solve for x
    x = 109,006,462.07/13,647.86
  6. Step 6: Final answer
    x = 7,987.07

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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.