Home / 13,917.78-19,206.63-7,630.26

Finding the Fourth Proportional to 13,917.78, 19,206.63 and 7,630.26

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Solution

The fourth proportional to 13,917.78, 19,206.63 and 7,630.26 is: 10,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.78 : 19,206.63 = 7,630.26 : x
  2. Step 2: Convert to fraction form
    13,917.78/19,206.63 = 7,630.26/x
  3. Step 3: Cross multiply
    13,917.78x = 19,206.63 × 7,630.26
  4. Step 4: Simplify right side
    13,917.78x = 146,551,580.62
  5. Step 5: Solve for x
    x = 146,551,580.62/13,917.78
  6. Step 6: Final answer
    x = 10,529.81

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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.