Home / 12,238.47-16,889.04-7,202.66

Finding the Fourth Proportional to 12,238.47, 16,889.04 and 7,202.66

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Solution

The fourth proportional to 12,238.47, 16,889.04 and 7,202.66 is: 9,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.47 : 16,889.04 = 7,202.66 : x
  2. Step 2: Convert to fraction form
    12,238.47/16,889.04 = 7,202.66/x
  3. Step 3: Cross multiply
    12,238.47x = 16,889.04 × 7,202.66
  4. Step 4: Simplify right side
    12,238.47x = 121,645,928.40
  5. Step 5: Solve for x
    x = 121,645,928.40/12,238.47
  6. Step 6: Final answer
    x = 9,939.64

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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.