Home / 12,485.23-17,203.66-8,499.43

Finding the Fourth Proportional to 12,485.23, 17,203.66 and 8,499.43

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Solution

The fourth proportional to 12,485.23, 17,203.66 and 8,499.43 is: 11,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.23 : 17,203.66 = 8,499.43 : x
  2. Step 2: Convert to fraction form
    12,485.23/17,203.66 = 8,499.43/x
  3. Step 3: Cross multiply
    12,485.23x = 17,203.66 × 8,499.43
  4. Step 4: Simplify right side
    12,485.23x = 146,221,303.91
  5. Step 5: Solve for x
    x = 146,221,303.91/12,485.23
  6. Step 6: Final answer
    x = 11,711.54

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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.