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Finding the Fourth Proportional to 12,670.34, 18,999.02 and 6,750.60

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Solution

The fourth proportional to 12,670.34, 18,999.02 and 6,750.60 is: 10,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.34 : 18,999.02 = 6,750.60 : x
  2. Step 2: Convert to fraction form
    12,670.34/18,999.02 = 6,750.60/x
  3. Step 3: Cross multiply
    12,670.34x = 18,999.02 × 6,750.60
  4. Step 4: Simplify right side
    12,670.34x = 128,254,784.41
  5. Step 5: Solve for x
    x = 128,254,784.41/12,670.34
  6. Step 6: Final answer
    x = 10,122.44

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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.