Home / 12,309.04-16,986.24-7,003.74

Finding the Fourth Proportional to 12,309.04, 16,986.24 and 7,003.74

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Solution

The fourth proportional to 12,309.04, 16,986.24 and 7,003.74 is: 9,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.04 : 16,986.24 = 7,003.74 : x
  2. Step 2: Convert to fraction form
    12,309.04/16,986.24 = 7,003.74/x
  3. Step 3: Cross multiply
    12,309.04x = 16,986.24 × 7,003.74
  4. Step 4: Simplify right side
    12,309.04x = 118,967,208.54
  5. Step 5: Solve for x
    x = 118,967,208.54/12,309.04
  6. Step 6: Final answer
    x = 9,665.03

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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.