Home / 11,319.55-16,985.94-4,745.23

Finding the Fourth Proportional to 11,319.55, 16,985.94 and 4,745.23

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Solution

The fourth proportional to 11,319.55, 16,985.94 and 4,745.23 is: 7,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.55 : 16,985.94 = 4,745.23 : x
  2. Step 2: Convert to fraction form
    11,319.55/16,985.94 = 4,745.23/x
  3. Step 3: Cross multiply
    11,319.55x = 16,985.94 × 4,745.23
  4. Step 4: Simplify right side
    11,319.55x = 80,602,192.07
  5. Step 5: Solve for x
    x = 80,602,192.07/11,319.55
  6. Step 6: Final answer
    x = 7,120.62

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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.