Home / 12,435.08-17,161.62-9,285.80

Finding the Fourth Proportional to 12,435.08, 17,161.62 and 9,285.80

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Solution

The fourth proportional to 12,435.08, 17,161.62 and 9,285.80 is: 12,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.08 : 17,161.62 = 9,285.80 : x
  2. Step 2: Convert to fraction form
    12,435.08/17,161.62 = 9,285.80/x
  3. Step 3: Cross multiply
    12,435.08x = 17,161.62 × 9,285.80
  4. Step 4: Simplify right side
    12,435.08x = 159,359,371.00
  5. Step 5: Solve for x
    x = 159,359,371.00/12,435.08
  6. Step 6: Final answer
    x = 12,815.31

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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.