Home / 18,942.64-26,145.54-12,902.88

Finding the Fourth Proportional to 18,942.64, 26,145.54 and 12,902.88

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Solution

The fourth proportional to 18,942.64, 26,145.54 and 12,902.88 is: 17,809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.64 : 26,145.54 = 12,902.88 : x
  2. Step 2: Convert to fraction form
    18,942.64/26,145.54 = 12,902.88/x
  3. Step 3: Cross multiply
    18,942.64x = 26,145.54 × 12,902.88
  4. Step 4: Simplify right side
    18,942.64x = 337,352,765.16
  5. Step 5: Solve for x
    x = 337,352,765.16/18,942.64
  6. Step 6: Final answer
    x = 17,809.17

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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.