Home / 15,745.99-21,728.79-8,575.93

Finding the Fourth Proportional to 15,745.99, 21,728.79 and 8,575.93

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Solution

The fourth proportional to 15,745.99, 21,728.79 and 8,575.93 is: 11,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.99 : 21,728.79 = 8,575.93 : x
  2. Step 2: Convert to fraction form
    15,745.99/21,728.79 = 8,575.93/x
  3. Step 3: Cross multiply
    15,745.99x = 21,728.79 × 8,575.93
  4. Step 4: Simplify right side
    15,745.99x = 186,344,582.02
  5. Step 5: Solve for x
    x = 186,344,582.02/15,745.99
  6. Step 6: Final answer
    x = 11,834.42

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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.