Home / 13,483.68-20,183.64-12,335.40

Finding the Fourth Proportional to 13,483.68, 20,183.64 and 12,335.40

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Solution

The fourth proportional to 13,483.68, 20,183.64 and 12,335.40 is: 18,464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.68 : 20,183.64 = 12,335.40 : x
  2. Step 2: Convert to fraction form
    13,483.68/20,183.64 = 12,335.40/x
  3. Step 3: Cross multiply
    13,483.68x = 20,183.64 × 12,335.40
  4. Step 4: Simplify right side
    13,483.68x = 248,973,272.86
  5. Step 5: Solve for x
    x = 248,973,272.86/13,483.68
  6. Step 6: Final answer
    x = 18,464.79

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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.