Home / 9,119.12-12,584.33-5,140.26

Finding the Fourth Proportional to 9,119.12, 12,584.33 and 5,140.26

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Solution

The fourth proportional to 9,119.12, 12,584.33 and 5,140.26 is: 7,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.12 : 12,584.33 = 5,140.26 : x
  2. Step 2: Convert to fraction form
    9,119.12/12,584.33 = 5,140.26/x
  3. Step 3: Cross multiply
    9,119.12x = 12,584.33 × 5,140.26
  4. Step 4: Simplify right side
    9,119.12x = 64,686,721.70
  5. Step 5: Solve for x
    x = 64,686,721.70/9,119.12
  6. Step 6: Final answer
    x = 7,093.53

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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.