Home / 13,635.57-18,816.98-8,603.04

Finding the Fourth Proportional to 13,635.57, 18,816.98 and 8,603.04

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Solution

The fourth proportional to 13,635.57, 18,816.98 and 8,603.04 is: 11,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.57 : 18,816.98 = 8,603.04 : x
  2. Step 2: Convert to fraction form
    13,635.57/18,816.98 = 8,603.04/x
  3. Step 3: Cross multiply
    13,635.57x = 18,816.98 × 8,603.04
  4. Step 4: Simplify right side
    13,635.57x = 161,883,188.60
  5. Step 5: Solve for x
    x = 161,883,188.60/13,635.57
  6. Step 6: Final answer
    x = 11,872.12

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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.