Home / 12,009.02-18,005.78-4,993.88

Finding the Fourth Proportional to 12,009.02, 18,005.78 and 4,993.88

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Solution

The fourth proportional to 12,009.02, 18,005.78 and 4,993.88 is: 7,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.02 : 18,005.78 = 4,993.88 : x
  2. Step 2: Convert to fraction form
    12,009.02/18,005.78 = 4,993.88/x
  3. Step 3: Cross multiply
    12,009.02x = 18,005.78 × 4,993.88
  4. Step 4: Simplify right side
    12,009.02x = 89,918,704.63
  5. Step 5: Solve for x
    x = 89,918,704.63/12,009.02
  6. Step 6: Final answer
    x = 7,487.60

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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.