Home / 19,996.61-29,999.09-6,669.06

Finding the Fourth Proportional to 19,996.61, 29,999.09 and 6,669.06

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Solution

The fourth proportional to 19,996.61, 29,999.09 and 6,669.06 is: 10,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.61 : 29,999.09 = 6,669.06 : x
  2. Step 2: Convert to fraction form
    19,996.61/29,999.09 = 6,669.06/x
  3. Step 3: Cross multiply
    19,996.61x = 29,999.09 × 6,669.06
  4. Step 4: Simplify right side
    19,996.61x = 200,065,697.81
  5. Step 5: Solve for x
    x = 200,065,697.81/19,996.61
  6. Step 6: Final answer
    x = 10,004.98

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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.