Home / 13,373.22-18,461.73-8,661.30

Finding the Fourth Proportional to 13,373.22, 18,461.73 and 8,661.30

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Solution

The fourth proportional to 13,373.22, 18,461.73 and 8,661.30 is: 11,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.22 : 18,461.73 = 8,661.30 : x
  2. Step 2: Convert to fraction form
    13,373.22/18,461.73 = 8,661.30/x
  3. Step 3: Cross multiply
    13,373.22x = 18,461.73 × 8,661.30
  4. Step 4: Simplify right side
    13,373.22x = 159,902,582.05
  5. Step 5: Solve for x
    x = 159,902,582.05/13,373.22
  6. Step 6: Final answer
    x = 11,956.92

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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.