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Finding the Fourth Proportional to 13,460.12, 20,191.16 and 3,599.16

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Solution

The fourth proportional to 13,460.12, 20,191.16 and 3,599.16 is: 5,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.12 : 20,191.16 = 3,599.16 : x
  2. Step 2: Convert to fraction form
    13,460.12/20,191.16 = 3,599.16/x
  3. Step 3: Cross multiply
    13,460.12x = 20,191.16 × 3,599.16
  4. Step 4: Simplify right side
    13,460.12x = 72,671,215.43
  5. Step 5: Solve for x
    x = 72,671,215.43/13,460.12
  6. Step 6: Final answer
    x = 5,399.00

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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.