Home / 13,929.62-19,222.76-7,556.22

Finding the Fourth Proportional to 13,929.62, 19,222.76 and 7,556.22

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Solution

The fourth proportional to 13,929.62, 19,222.76 and 7,556.22 is: 10,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.62 : 19,222.76 = 7,556.22 : x
  2. Step 2: Convert to fraction form
    13,929.62/19,222.76 = 7,556.22/x
  3. Step 3: Cross multiply
    13,929.62x = 19,222.76 × 7,556.22
  4. Step 4: Simplify right side
    13,929.62x = 145,251,422.46
  5. Step 5: Solve for x
    x = 145,251,422.46/13,929.62
  6. Step 6: Final answer
    x = 10,427.53

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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.