Home / 12,909.26-17,813.32-7,243.25

Finding the Fourth Proportional to 12,909.26, 17,813.32 and 7,243.25

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Solution

The fourth proportional to 12,909.26, 17,813.32 and 7,243.25 is: 9,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.26 : 17,813.32 = 7,243.25 : x
  2. Step 2: Convert to fraction form
    12,909.26/17,813.32 = 7,243.25/x
  3. Step 3: Cross multiply
    12,909.26x = 17,813.32 × 7,243.25
  4. Step 4: Simplify right side
    12,909.26x = 129,026,222.92
  5. Step 5: Solve for x
    x = 129,026,222.92/12,909.26
  6. Step 6: Final answer
    x = 9,994.86

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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.