Home / 15,935.03-21,993.70-12,769.35

Finding the Fourth Proportional to 15,935.03, 21,993.70 and 12,769.35

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Solution

The fourth proportional to 15,935.03, 21,993.70 and 12,769.35 is: 17,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.03 : 21,993.70 = 12,769.35 : x
  2. Step 2: Convert to fraction form
    15,935.03/21,993.70 = 12,769.35/x
  3. Step 3: Cross multiply
    15,935.03x = 21,993.70 × 12,769.35
  4. Step 4: Simplify right side
    15,935.03x = 280,845,198.55
  5. Step 5: Solve for x
    x = 280,845,198.55/15,935.03
  6. Step 6: Final answer
    x = 17,624.39

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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.