Home / 14,222.72-19,637.75-9,189.92

Finding the Fourth Proportional to 14,222.72, 19,637.75 and 9,189.92

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Solution

The fourth proportional to 14,222.72, 19,637.75 and 9,189.92 is: 12,688.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.72 : 19,637.75 = 9,189.92 : x
  2. Step 2: Convert to fraction form
    14,222.72/19,637.75 = 9,189.92/x
  3. Step 3: Cross multiply
    14,222.72x = 19,637.75 × 9,189.92
  4. Step 4: Simplify right side
    14,222.72x = 180,469,351.48
  5. Step 5: Solve for x
    x = 180,469,351.48/14,222.72
  6. Step 6: Final answer
    x = 12,688.81

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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.