Home / 13,489.96-18,615.90-7,522.06

Finding the Fourth Proportional to 13,489.96, 18,615.90 and 7,522.06

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Solution

The fourth proportional to 13,489.96, 18,615.90 and 7,522.06 is: 10,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.96 : 18,615.90 = 7,522.06 : x
  2. Step 2: Convert to fraction form
    13,489.96/18,615.90 = 7,522.06/x
  3. Step 3: Cross multiply
    13,489.96x = 18,615.90 × 7,522.06
  4. Step 4: Simplify right side
    13,489.96x = 140,029,916.75
  5. Step 5: Solve for x
    x = 140,029,916.75/13,489.96
  6. Step 6: Final answer
    x = 10,380.31

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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.