Home / 13,638.65-20,466.68-8,968.05

Finding the Fourth Proportional to 13,638.65, 20,466.68 and 8,968.05

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Solution

The fourth proportional to 13,638.65, 20,466.68 and 8,968.05 is: 13,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,638.65 : 20,466.68 = 8,968.05 : x
  2. Step 2: Convert to fraction form
    13,638.65/20,466.68 = 8,968.05/x
  3. Step 3: Cross multiply
    13,638.65x = 20,466.68 × 8,968.05
  4. Step 4: Simplify right side
    13,638.65x = 183,546,164.73
  5. Step 5: Solve for x
    x = 183,546,164.73/13,638.65
  6. Step 6: Final answer
    x = 13,457.80

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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.