Home / 18,672.26-28,012.84-5,345.46

Finding the Fourth Proportional to 18,672.26, 28,012.84 and 5,345.46

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Solution

The fourth proportional to 18,672.26, 28,012.84 and 5,345.46 is: 8,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.26 : 28,012.84 = 5,345.46 : x
  2. Step 2: Convert to fraction form
    18,672.26/28,012.84 = 5,345.46/x
  3. Step 3: Cross multiply
    18,672.26x = 28,012.84 × 5,345.46
  4. Step 4: Simplify right side
    18,672.26x = 149,741,515.71
  5. Step 5: Solve for x
    x = 149,741,515.71/18,672.26
  6. Step 6: Final answer
    x = 8,019.46

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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.