Home / 18,261.84-25,201.36-9,878.34

Finding the Fourth Proportional to 18,261.84, 25,201.36 and 9,878.34

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Solution

The fourth proportional to 18,261.84, 25,201.36 and 9,878.34 is: 13,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.84 : 25,201.36 = 9,878.34 : x
  2. Step 2: Convert to fraction form
    18,261.84/25,201.36 = 9,878.34/x
  3. Step 3: Cross multiply
    18,261.84x = 25,201.36 × 9,878.34
  4. Step 4: Simplify right side
    18,261.84x = 248,947,602.54
  5. Step 5: Solve for x
    x = 248,947,602.54/18,261.84
  6. Step 6: Final answer
    x = 13,632.12

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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.