Home / 12,089.36-18,113.92-8,561.92

Finding the Fourth Proportional to 12,089.36, 18,113.92 and 8,561.92

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Solution

The fourth proportional to 12,089.36, 18,113.92 and 8,561.92 is: 12,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.36 : 18,113.92 = 8,561.92 : x
  2. Step 2: Convert to fraction form
    12,089.36/18,113.92 = 8,561.92/x
  3. Step 3: Cross multiply
    12,089.36x = 18,113.92 × 8,561.92
  4. Step 4: Simplify right side
    12,089.36x = 155,089,933.93
  5. Step 5: Solve for x
    x = 155,089,933.93/12,089.36
  6. Step 6: Final answer
    x = 12,828.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.