Home / 14,019.45-19,346.49-7,731.69

Finding the Fourth Proportional to 14,019.45, 19,346.49 and 7,731.69

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Solution

The fourth proportional to 14,019.45, 19,346.49 and 7,731.69 is: 10,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.45 : 19,346.49 = 7,731.69 : x
  2. Step 2: Convert to fraction form
    14,019.45/19,346.49 = 7,731.69/x
  3. Step 3: Cross multiply
    14,019.45x = 19,346.49 × 7,731.69
  4. Step 4: Simplify right side
    14,019.45x = 149,581,063.27
  5. Step 5: Solve for x
    x = 149,581,063.27/14,019.45
  6. Step 6: Final answer
    x = 10,669.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.