Home / 14,825.87-20,460.21-8,453.40

Finding the Fourth Proportional to 14,825.87, 20,460.21 and 8,453.40

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Solution

The fourth proportional to 14,825.87, 20,460.21 and 8,453.40 is: 11,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,825.87 : 20,460.21 = 8,453.40 : x
  2. Step 2: Convert to fraction form
    14,825.87/20,460.21 = 8,453.40/x
  3. Step 3: Cross multiply
    14,825.87x = 20,460.21 × 8,453.40
  4. Step 4: Simplify right side
    14,825.87x = 172,958,339.21
  5. Step 5: Solve for x
    x = 172,958,339.21/14,825.87
  6. Step 6: Final answer
    x = 11,665.98

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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.