Home / 18,722.64-28,086.84-7,036.68

Finding the Fourth Proportional to 18,722.64, 28,086.84 and 7,036.68

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Solution

The fourth proportional to 18,722.64, 28,086.84 and 7,036.68 is: 10,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.64 : 28,086.84 = 7,036.68 : x
  2. Step 2: Convert to fraction form
    18,722.64/28,086.84 = 7,036.68/x
  3. Step 3: Cross multiply
    18,722.64x = 28,086.84 × 7,036.68
  4. Step 4: Simplify right side
    18,722.64x = 197,638,105.29
  5. Step 5: Solve for x
    x = 197,638,105.29/18,722.64
  6. Step 6: Final answer
    x = 10,556.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.