Home / 12,971.44-19,459.90-4,205.67

Finding the Fourth Proportional to 12,971.44, 19,459.90 and 4,205.67

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Solution

The fourth proportional to 12,971.44, 19,459.90 and 4,205.67 is: 6,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.44 : 19,459.90 = 4,205.67 : x
  2. Step 2: Convert to fraction form
    12,971.44/19,459.90 = 4,205.67/x
  3. Step 3: Cross multiply
    12,971.44x = 19,459.90 × 4,205.67
  4. Step 4: Simplify right side
    12,971.44x = 81,841,935.72
  5. Step 5: Solve for x
    x = 81,841,935.72/12,971.44
  6. Step 6: Final answer
    x = 6,309.39

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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.