Home / 13,929.75-19,222.94-7,556.32

Finding the Fourth Proportional to 13,929.75, 19,222.94 and 7,556.32

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Solution

The fourth proportional to 13,929.75, 19,222.94 and 7,556.32 is: 10,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.75 : 19,222.94 = 7,556.32 : x
  2. Step 2: Convert to fraction form
    13,929.75/19,222.94 = 7,556.32/x
  3. Step 3: Cross multiply
    13,929.75x = 19,222.94 × 7,556.32
  4. Step 4: Simplify right side
    13,929.75x = 145,254,648.20
  5. Step 5: Solve for x
    x = 145,254,648.20/13,929.75
  6. Step 6: Final answer
    x = 10,427.66

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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.