Home / 13,809.08-19,059.10-12,965.06

Finding the Fourth Proportional to 13,809.08, 19,059.10 and 12,965.06

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Solution

The fourth proportional to 13,809.08, 19,059.10 and 12,965.06 is: 17,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.08 : 19,059.10 = 12,965.06 : x
  2. Step 2: Convert to fraction form
    13,809.08/19,059.10 = 12,965.06/x
  3. Step 3: Cross multiply
    13,809.08x = 19,059.10 × 12,965.06
  4. Step 4: Simplify right side
    13,809.08x = 247,102,375.05
  5. Step 5: Solve for x
    x = 247,102,375.05/13,809.08
  6. Step 6: Final answer
    x = 17,894.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.