Home / 13,929.54-20,893.54-10,185.15

Finding the Fourth Proportional to 13,929.54, 20,893.54 and 10,185.15

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Solution

The fourth proportional to 13,929.54, 20,893.54 and 10,185.15 is: 15,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.54 : 20,893.54 = 10,185.15 : x
  2. Step 2: Convert to fraction form
    13,929.54/20,893.54 = 10,185.15/x
  3. Step 3: Cross multiply
    13,929.54x = 20,893.54 × 10,185.15
  4. Step 4: Simplify right side
    13,929.54x = 212,803,788.01
  5. Step 5: Solve for x
    x = 212,803,788.01/13,929.54
  6. Step 6: Final answer
    x = 15,277.16

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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.