Home / 18,261.95-25,201.52-9,878.45

Finding the Fourth Proportional to 18,261.95, 25,201.52 and 9,878.45

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Solution

The fourth proportional to 18,261.95, 25,201.52 and 9,878.45 is: 13,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.95 : 25,201.52 = 9,878.45 : x
  2. Step 2: Convert to fraction form
    18,261.95/25,201.52 = 9,878.45/x
  3. Step 3: Cross multiply
    18,261.95x = 25,201.52 × 9,878.45
  4. Step 4: Simplify right side
    18,261.95x = 248,951,779.84
  5. Step 5: Solve for x
    x = 248,951,779.84/18,261.95
  6. Step 6: Final answer
    x = 13,632.27

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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.