Home / 10,516.18-15,785.21-7,745.98

Finding the Fourth Proportional to 10,516.18, 15,785.21 and 7,745.98

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Solution

The fourth proportional to 10,516.18, 15,785.21 and 7,745.98 is: 11,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.18 : 15,785.21 = 7,745.98 : x
  2. Step 2: Convert to fraction form
    10,516.18/15,785.21 = 7,745.98/x
  3. Step 3: Cross multiply
    10,516.18x = 15,785.21 × 7,745.98
  4. Step 4: Simplify right side
    10,516.18x = 122,271,920.96
  5. Step 5: Solve for x
    x = 122,271,920.96/10,516.18
  6. Step 6: Final answer
    x = 11,627.03

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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.