Home / 13,098.88-19,640.80-4,331.44

Finding the Fourth Proportional to 13,098.88, 19,640.80 and 4,331.44

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Solution

The fourth proportional to 13,098.88, 19,640.80 and 4,331.44 is: 6,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,098.88 : 19,640.80 = 4,331.44 : x
  2. Step 2: Convert to fraction form
    13,098.88/19,640.80 = 4,331.44/x
  3. Step 3: Cross multiply
    13,098.88x = 19,640.80 × 4,331.44
  4. Step 4: Simplify right side
    13,098.88x = 85,072,946.75
  5. Step 5: Solve for x
    x = 85,072,946.75/13,098.88
  6. Step 6: Final answer
    x = 6,494.67

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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.