Home / 15,059.93-20,782.82-8,345.66

Finding the Fourth Proportional to 15,059.93, 20,782.82 and 8,345.66

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Solution

The fourth proportional to 15,059.93, 20,782.82 and 8,345.66 is: 11,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059.93 : 20,782.82 = 8,345.66 : x
  2. Step 2: Convert to fraction form
    15,059.93/20,782.82 = 8,345.66/x
  3. Step 3: Cross multiply
    15,059.93x = 20,782.82 × 8,345.66
  4. Step 4: Simplify right side
    15,059.93x = 173,446,391.09
  5. Step 5: Solve for x
    x = 173,446,391.09/15,059.93
  6. Step 6: Final answer
    x = 11,517.08

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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.