Home / 13,654.41-18,848.90-9,180.75

Finding the Fourth Proportional to 13,654.41, 18,848.90 and 9,180.75

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Solution

The fourth proportional to 13,654.41, 18,848.90 and 9,180.75 is: 12,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.41 : 18,848.90 = 9,180.75 : x
  2. Step 2: Convert to fraction form
    13,654.41/18,848.90 = 9,180.75/x
  3. Step 3: Cross multiply
    13,654.41x = 18,848.90 × 9,180.75
  4. Step 4: Simplify right side
    13,654.41x = 173,046,956.52
  5. Step 5: Solve for x
    x = 173,046,956.52/13,654.41
  6. Step 6: Final answer
    x = 12,673.34

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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.