Home / 18,627.73-25,705.24-10,129.84

Finding the Fourth Proportional to 18,627.73, 25,705.24 and 10,129.84

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Solution

The fourth proportional to 18,627.73, 25,705.24 and 10,129.84 is: 13,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.73 : 25,705.24 = 10,129.84 : x
  2. Step 2: Convert to fraction form
    18,627.73/25,705.24 = 10,129.84/x
  3. Step 3: Cross multiply
    18,627.73x = 25,705.24 × 10,129.84
  4. Step 4: Simplify right side
    18,627.73x = 260,390,023.37
  5. Step 5: Solve for x
    x = 260,390,023.37/18,627.73
  6. Step 6: Final answer
    x = 13,978.63

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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.