Home / 16,969.10-25,430.36-12,805.70

Finding the Fourth Proportional to 16,969.10, 25,430.36 and 12,805.70

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Solution

The fourth proportional to 16,969.10, 25,430.36 and 12,805.70 is: 19,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.10 : 25,430.36 = 12,805.70 : x
  2. Step 2: Convert to fraction form
    16,969.10/25,430.36 = 12,805.70/x
  3. Step 3: Cross multiply
    16,969.10x = 25,430.36 × 12,805.70
  4. Step 4: Simplify right side
    16,969.10x = 325,653,369.87
  5. Step 5: Solve for x
    x = 325,653,369.87/16,969.10
  6. Step 6: Final answer
    x = 19,190.97

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1.5x scale

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.