Home / 15,038.88-20,751.91-8,323.57

Finding the Fourth Proportional to 15,038.88, 20,751.91 and 8,323.57

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Solution

The fourth proportional to 15,038.88, 20,751.91 and 8,323.57 is: 11,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.88 : 20,751.91 = 8,323.57 : x
  2. Step 2: Convert to fraction form
    15,038.88/20,751.91 = 8,323.57/x
  3. Step 3: Cross multiply
    15,038.88x = 20,751.91 × 8,323.57
  4. Step 4: Simplify right side
    15,038.88x = 172,729,975.52
  5. Step 5: Solve for x
    x = 172,729,975.52/15,038.88
  6. Step 6: Final answer
    x = 11,485.56

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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.