Home / 21,084.60-29,091.06-12,134.64

Finding the Fourth Proportional to 21,084.60, 29,091.06 and 12,134.64

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Solution

The fourth proportional to 21,084.60, 29,091.06 and 12,134.64 is: 16,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.60 : 29,091.06 = 12,134.64 : x
  2. Step 2: Convert to fraction form
    21,084.60/29,091.06 = 12,134.64/x
  3. Step 3: Cross multiply
    21,084.60x = 29,091.06 × 12,134.64
  4. Step 4: Simplify right side
    21,084.60x = 353,009,540.32
  5. Step 5: Solve for x
    x = 353,009,540.32/21,084.60
  6. Step 6: Final answer
    x = 16,742.53

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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.