Home / 12,806.06-17,673.53-7,771.56

Finding the Fourth Proportional to 12,806.06, 17,673.53 and 7,771.56

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Solution

The fourth proportional to 12,806.06, 17,673.53 and 7,771.56 is: 10,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.06 : 17,673.53 = 7,771.56 : x
  2. Step 2: Convert to fraction form
    12,806.06/17,673.53 = 7,771.56/x
  3. Step 3: Cross multiply
    12,806.06x = 17,673.53 × 7,771.56
  4. Step 4: Simplify right side
    12,806.06x = 137,350,898.81
  5. Step 5: Solve for x
    x = 137,350,898.81/12,806.06
  6. Step 6: Final answer
    x = 10,725.46

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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.