Home / 7,687.14-11,530.51-2,140.26

Finding the Fourth Proportional to 7,687.14, 11,530.51 and 2,140.26

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Solution

The fourth proportional to 7,687.14, 11,530.51 and 2,140.26 is: 3,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.14 : 11,530.51 = 2,140.26 : x
  2. Step 2: Convert to fraction form
    7,687.14/11,530.51 = 2,140.26/x
  3. Step 3: Cross multiply
    7,687.14x = 11,530.51 × 2,140.26
  4. Step 4: Simplify right side
    7,687.14x = 24,678,289.33
  5. Step 5: Solve for x
    x = 24,678,289.33/7,687.14
  6. Step 6: Final answer
    x = 3,210.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.