Home / 8,673.51-11,969.61-5,136.03

Finding the Fourth Proportional to 8,673.51, 11,969.61 and 5,136.03

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Solution

The fourth proportional to 8,673.51, 11,969.61 and 5,136.03 is: 7,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.51 : 11,969.61 = 5,136.03 : x
  2. Step 2: Convert to fraction form
    8,673.51/11,969.61 = 5,136.03/x
  3. Step 3: Cross multiply
    8,673.51x = 11,969.61 × 5,136.03
  4. Step 4: Simplify right side
    8,673.51x = 61,476,276.05
  5. Step 5: Solve for x
    x = 61,476,276.05/8,673.51
  6. Step 6: Final answer
    x = 7,087.82

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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.