Home / 13,107.92-19,566.86-12,132.32

Finding the Fourth Proportional to 13,107.92, 19,566.86 and 12,132.32

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Solution

The fourth proportional to 13,107.92, 19,566.86 and 12,132.32 is: 18,110.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.92 : 19,566.86 = 12,132.32 : x
  2. Step 2: Convert to fraction form
    13,107.92/19,566.86 = 12,132.32/x
  3. Step 3: Cross multiply
    13,107.92x = 19,566.86 × 12,132.32
  4. Step 4: Simplify right side
    13,107.92x = 237,391,406.92
  5. Step 5: Solve for x
    x = 237,391,406.92/13,107.92
  6. Step 6: Final answer
    x = 18,110.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.