Home / 13,461.08-20,181.54-9,289.18

Finding the Fourth Proportional to 13,461.08, 20,181.54 and 9,289.18

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Solution

The fourth proportional to 13,461.08, 20,181.54 and 9,289.18 is: 13,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.08 : 20,181.54 = 9,289.18 : x
  2. Step 2: Convert to fraction form
    13,461.08/20,181.54 = 9,289.18/x
  3. Step 3: Cross multiply
    13,461.08x = 20,181.54 × 9,289.18
  4. Step 4: Simplify right side
    13,461.08x = 187,469,957.74
  5. Step 5: Solve for x
    x = 187,469,957.74/13,461.08
  6. Step 6: Final answer
    x = 13,926.81

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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.