Home / 7,013.06-9,678.01-3,869.25

Finding the Fourth Proportional to 7,013.06, 9,678.01 and 3,869.25

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Solution

The fourth proportional to 7,013.06, 9,678.01 and 3,869.25 is: 5,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.06 : 9,678.01 = 3,869.25 : x
  2. Step 2: Convert to fraction form
    7,013.06/9,678.01 = 3,869.25/x
  3. Step 3: Cross multiply
    7,013.06x = 9,678.01 × 3,869.25
  4. Step 4: Simplify right side
    7,013.06x = 37,446,640.19
  5. Step 5: Solve for x
    x = 37,446,640.19/7,013.06
  6. Step 6: Final answer
    x = 5,339.56

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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.