Home / 11,986.79-16,541.82-6,681.59

Finding the Fourth Proportional to 11,986.79, 16,541.82 and 6,681.59

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Solution

The fourth proportional to 11,986.79, 16,541.82 and 6,681.59 is: 9,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.79 : 16,541.82 = 6,681.59 : x
  2. Step 2: Convert to fraction form
    11,986.79/16,541.82 = 6,681.59/x
  3. Step 3: Cross multiply
    11,986.79x = 16,541.82 × 6,681.59
  4. Step 4: Simplify right side
    11,986.79x = 110,525,638.42
  5. Step 5: Solve for x
    x = 110,525,638.42/11,986.79
  6. Step 6: Final answer
    x = 9,220.62

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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.