Home / 12,611.33-17,398.47-7,230.77

Finding the Fourth Proportional to 12,611.33, 17,398.47 and 7,230.77

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Solution

The fourth proportional to 12,611.33, 17,398.47 and 7,230.77 is: 9,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.33 : 17,398.47 = 7,230.77 : x
  2. Step 2: Convert to fraction form
    12,611.33/17,398.47 = 7,230.77/x
  3. Step 3: Cross multiply
    12,611.33x = 17,398.47 × 7,230.77
  4. Step 4: Simplify right side
    12,611.33x = 125,804,334.92
  5. Step 5: Solve for x
    x = 125,804,334.92/12,611.33
  6. Step 6: Final answer
    x = 9,975.50

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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.