Home / 18,420.90-27,631.35-6,732.60

Finding the Fourth Proportional to 18,420.90, 27,631.35 and 6,732.60

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Solution

The fourth proportional to 18,420.90, 27,631.35 and 6,732.60 is: 10,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.90 : 27,631.35 = 6,732.60 : x
  2. Step 2: Convert to fraction form
    18,420.90/27,631.35 = 6,732.60/x
  3. Step 3: Cross multiply
    18,420.90x = 27,631.35 × 6,732.60
  4. Step 4: Simplify right side
    18,420.90x = 186,030,827.01
  5. Step 5: Solve for x
    x = 186,030,827.01/18,420.90
  6. Step 6: Final answer
    x = 10,098.90

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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.