Home / 13,645.15-20,468.13-5,324.83

Finding the Fourth Proportional to 13,645.15, 20,468.13 and 5,324.83

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Solution

The fourth proportional to 13,645.15, 20,468.13 and 5,324.83 is: 7,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.15 : 20,468.13 = 5,324.83 : x
  2. Step 2: Convert to fraction form
    13,645.15/20,468.13 = 5,324.83/x
  3. Step 3: Cross multiply
    13,645.15x = 20,468.13 × 5,324.83
  4. Step 4: Simplify right side
    13,645.15x = 108,989,312.67
  5. Step 5: Solve for x
    x = 108,989,312.67/13,645.15
  6. Step 6: Final answer
    x = 7,987.40

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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.