Home / 15,356.68-23,021.58-12,745.90

Finding the Fourth Proportional to 15,356.68, 23,021.58 and 12,745.90

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Solution

The fourth proportional to 15,356.68, 23,021.58 and 12,745.90 is: 19,107.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.68 : 23,021.58 = 12,745.90 : x
  2. Step 2: Convert to fraction form
    15,356.68/23,021.58 = 12,745.90/x
  3. Step 3: Cross multiply
    15,356.68x = 23,021.58 × 12,745.90
  4. Step 4: Simplify right side
    15,356.68x = 293,430,756.52
  5. Step 5: Solve for x
    x = 293,430,756.52/15,356.68
  6. Step 6: Final answer
    x = 19,107.69

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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.