Home / 13,808.40-19,059.48-12,447.60

Finding the Fourth Proportional to 13,808.40, 19,059.48 and 12,447.60

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Solution

The fourth proportional to 13,808.40, 19,059.48 and 12,447.60 is: 17,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.40 : 19,059.48 = 12,447.60 : x
  2. Step 2: Convert to fraction form
    13,808.40/19,059.48 = 12,447.60/x
  3. Step 3: Cross multiply
    13,808.40x = 19,059.48 × 12,447.60
  4. Step 4: Simplify right side
    13,808.40x = 237,244,783.25
  5. Step 5: Solve for x
    x = 237,244,783.25/13,808.40
  6. Step 6: Final answer
    x = 17,181.19

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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.