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Finding the Fourth Proportional to 13,652.35, 18,839.99 and 7,684.67

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Solution

The fourth proportional to 13,652.35, 18,839.99 and 7,684.67 is: 10,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.35 : 18,839.99 = 7,684.67 : x
  2. Step 2: Convert to fraction form
    13,652.35/18,839.99 = 7,684.67/x
  3. Step 3: Cross multiply
    13,652.35x = 18,839.99 × 7,684.67
  4. Step 4: Simplify right side
    13,652.35x = 144,779,172.26
  5. Step 5: Solve for x
    x = 144,779,172.26/13,652.35
  6. Step 6: Final answer
    x = 10,604.71

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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.