Home / 13,485.32-20,232.18-12,089.87

Finding the Fourth Proportional to 13,485.32, 20,232.18 and 12,089.87

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Solution

The fourth proportional to 13,485.32, 20,232.18 and 12,089.87 is: 18,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.32 : 20,232.18 = 12,089.87 : x
  2. Step 2: Convert to fraction form
    13,485.32/20,232.18 = 12,089.87/x
  3. Step 3: Cross multiply
    13,485.32x = 20,232.18 × 12,089.87
  4. Step 4: Simplify right side
    13,485.32x = 244,604,426.02
  5. Step 5: Solve for x
    x = 244,604,426.02/13,485.32
  6. Step 6: Final answer
    x = 18,138.57

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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.