Home / 8,669.81-11,935.41-8,273.09

Finding the Fourth Proportional to 8,669.81, 11,935.41 and 8,273.09

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Solution

The fourth proportional to 8,669.81, 11,935.41 and 8,273.09 is: 11,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.81 : 11,935.41 = 8,273.09 : x
  2. Step 2: Convert to fraction form
    8,669.81/11,935.41 = 8,273.09/x
  3. Step 3: Cross multiply
    8,669.81x = 11,935.41 × 8,273.09
  4. Step 4: Simplify right side
    8,669.81x = 98,742,721.12
  5. Step 5: Solve for x
    x = 98,742,721.12/8,669.81
  6. Step 6: Final answer
    x = 11,389.26

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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.