Home / 12,625.89-18,939.15-5,228.36

Finding the Fourth Proportional to 12,625.89, 18,939.15 and 5,228.36

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Solution

The fourth proportional to 12,625.89, 18,939.15 and 5,228.36 is: 7,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.89 : 18,939.15 = 5,228.36 : x
  2. Step 2: Convert to fraction form
    12,625.89/18,939.15 = 5,228.36/x
  3. Step 3: Cross multiply
    12,625.89x = 18,939.15 × 5,228.36
  4. Step 4: Simplify right side
    12,625.89x = 99,020,694.29
  5. Step 5: Solve for x
    x = 99,020,694.29/12,625.89
  6. Step 6: Final answer
    x = 7,842.67

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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.