Home / 13,561.02-20,331.81-6,161.67

Finding the Fourth Proportional to 13,561.02, 20,331.81 and 6,161.67

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Solution

The fourth proportional to 13,561.02, 20,331.81 and 6,161.67 is: 9,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.02 : 20,331.81 = 6,161.67 : x
  2. Step 2: Convert to fraction form
    13,561.02/20,331.81 = 6,161.67/x
  3. Step 3: Cross multiply
    13,561.02x = 20,331.81 × 6,161.67
  4. Step 4: Simplify right side
    13,561.02x = 125,277,903.72
  5. Step 5: Solve for x
    x = 125,277,903.72/13,561.02
  6. Step 6: Final answer
    x = 9,238.09

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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.