Home / 13,212.51-19,825.26-5,314.71

Finding the Fourth Proportional to 13,212.51, 19,825.26 and 5,314.71

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Solution

The fourth proportional to 13,212.51, 19,825.26 and 5,314.71 is: 7,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.51 : 19,825.26 = 5,314.71 : x
  2. Step 2: Convert to fraction form
    13,212.51/19,825.26 = 5,314.71/x
  3. Step 3: Cross multiply
    13,212.51x = 19,825.26 × 5,314.71
  4. Step 4: Simplify right side
    13,212.51x = 105,365,507.57
  5. Step 5: Solve for x
    x = 105,365,507.57/13,212.51
  6. Step 6: Final answer
    x = 7,974.68

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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.