Home / 13,917.51-19,206.36-7,629.75

Finding the Fourth Proportional to 13,917.51, 19,206.36 and 7,629.75

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Solution

The fourth proportional to 13,917.51, 19,206.36 and 7,629.75 is: 10,529.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.51 : 19,206.36 = 7,629.75 : x
  2. Step 2: Convert to fraction form
    13,917.51/19,206.36 = 7,629.75/x
  3. Step 3: Cross multiply
    13,917.51x = 19,206.36 × 7,629.75
  4. Step 4: Simplify right side
    13,917.51x = 146,539,725.21
  5. Step 5: Solve for x
    x = 146,539,725.21/13,917.51
  6. Step 6: Final answer
    x = 10,529.16

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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.