Home / 13,646.86-20,465.93-5,324.85

Finding the Fourth Proportional to 13,646.86, 20,465.93 and 5,324.85

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Solution

The fourth proportional to 13,646.86, 20,465.93 and 5,324.85 is: 7,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.86 : 20,465.93 = 5,324.85 : x
  2. Step 2: Convert to fraction form
    13,646.86/20,465.93 = 5,324.85/x
  3. Step 3: Cross multiply
    13,646.86x = 20,465.93 × 5,324.85
  4. Step 4: Simplify right side
    13,646.86x = 108,978,020.67
  5. Step 5: Solve for x
    x = 108,978,020.67/13,646.86
  6. Step 6: Final answer
    x = 7,985.58

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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.