Home / 13,601.68-20,403.96-12,056.08

Finding the Fourth Proportional to 13,601.68, 20,403.96 and 12,056.08

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Solution

The fourth proportional to 13,601.68, 20,403.96 and 12,056.08 is: 18,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.68 : 20,403.96 = 12,056.08 : x
  2. Step 2: Convert to fraction form
    13,601.68/20,403.96 = 12,056.08/x
  3. Step 3: Cross multiply
    13,601.68x = 20,403.96 × 12,056.08
  4. Step 4: Simplify right side
    13,601.68x = 245,991,774.08
  5. Step 5: Solve for x
    x = 245,991,774.08/13,601.68
  6. Step 6: Final answer
    x = 18,085.40

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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.