Home / 11,986.22-16,541.70-6,681.02

Finding the Fourth Proportional to 11,986.22, 16,541.70 and 6,681.02

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Solution

The fourth proportional to 11,986.22, 16,541.70 and 6,681.02 is: 9,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.22 : 16,541.70 = 6,681.02 : x
  2. Step 2: Convert to fraction form
    11,986.22/16,541.70 = 6,681.02/x
  3. Step 3: Cross multiply
    11,986.22x = 16,541.70 × 6,681.02
  4. Step 4: Simplify right side
    11,986.22x = 110,515,428.53
  5. Step 5: Solve for x
    x = 110,515,428.53/11,986.22
  6. Step 6: Final answer
    x = 9,220.21

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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.