Home / 12,657.90-18,989.49-6,336.06

Finding the Fourth Proportional to 12,657.90, 18,989.49 and 6,336.06

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Solution

The fourth proportional to 12,657.90, 18,989.49 and 6,336.06 is: 9,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.90 : 18,989.49 = 6,336.06 : x
  2. Step 2: Convert to fraction form
    12,657.90/18,989.49 = 6,336.06/x
  3. Step 3: Cross multiply
    12,657.90x = 18,989.49 × 6,336.06
  4. Step 4: Simplify right side
    12,657.90x = 120,318,548.01
  5. Step 5: Solve for x
    x = 120,318,548.01/12,657.90
  6. Step 6: Final answer
    x = 9,505.41

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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.