Home / 12,669.85-19,005.44-5,648.67

Finding the Fourth Proportional to 12,669.85, 19,005.44 and 5,648.67

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Solution

The fourth proportional to 12,669.85, 19,005.44 and 5,648.67 is: 8,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.85 : 19,005.44 = 5,648.67 : x
  2. Step 2: Convert to fraction form
    12,669.85/19,005.44 = 5,648.67/x
  3. Step 3: Cross multiply
    12,669.85x = 19,005.44 × 5,648.67
  4. Step 4: Simplify right side
    12,669.85x = 107,355,430.52
  5. Step 5: Solve for x
    x = 107,355,430.52/12,669.85
  6. Step 6: Final answer
    x = 8,473.30

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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.