Home / 12,276.18-16,940.33-7,239.25

Finding the Fourth Proportional to 12,276.18, 16,940.33 and 7,239.25

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Solution

The fourth proportional to 12,276.18, 16,940.33 and 7,239.25 is: 9,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.18 : 16,940.33 = 7,239.25 : x
  2. Step 2: Convert to fraction form
    12,276.18/16,940.33 = 7,239.25/x
  3. Step 3: Cross multiply
    12,276.18x = 16,940.33 × 7,239.25
  4. Step 4: Simplify right side
    12,276.18x = 122,635,199.25
  5. Step 5: Solve for x
    x = 122,635,199.25/12,276.18
  6. Step 6: Final answer
    x = 9,989.69

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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.