Home / 18,711.42-28,059.84-7,018.26

Finding the Fourth Proportional to 18,711.42, 28,059.84 and 7,018.26

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Solution

The fourth proportional to 18,711.42, 28,059.84 and 7,018.26 is: 10,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.42 : 28,059.84 = 7,018.26 : x
  2. Step 2: Convert to fraction form
    18,711.42/28,059.84 = 7,018.26/x
  3. Step 3: Cross multiply
    18,711.42x = 28,059.84 × 7,018.26
  4. Step 4: Simplify right side
    18,711.42x = 196,931,252.68
  5. Step 5: Solve for x
    x = 196,931,252.68/18,711.42
  6. Step 6: Final answer
    x = 10,524.66

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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.