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Finding the Fourth Proportional to 13,599.68, 20,400.96 and 12,054.08

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Solution

The fourth proportional to 13,599.68, 20,400.96 and 12,054.08 is: 18,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.68 : 20,400.96 = 12,054.08 : x
  2. Step 2: Convert to fraction form
    13,599.68/20,400.96 = 12,054.08/x
  3. Step 3: Cross multiply
    13,599.68x = 20,400.96 × 12,054.08
  4. Step 4: Simplify right side
    13,599.68x = 245,914,803.92
  5. Step 5: Solve for x
    x = 245,914,803.92/13,599.68
  6. Step 6: Final answer
    x = 18,082.40

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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.