Home / 13,120.52-19,664.34-9,366.40

Finding the Fourth Proportional to 13,120.52, 19,664.34 and 9,366.40

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Solution

The fourth proportional to 13,120.52, 19,664.34 and 9,366.40 is: 14,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.52 : 19,664.34 = 9,366.40 : x
  2. Step 2: Convert to fraction form
    13,120.52/19,664.34 = 9,366.40/x
  3. Step 3: Cross multiply
    13,120.52x = 19,664.34 × 9,366.40
  4. Step 4: Simplify right side
    13,120.52x = 184,184,000.43
  5. Step 5: Solve for x
    x = 184,184,000.43/13,120.52
  6. Step 6: Final answer
    x = 14,037.86

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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.