Home / 12,684.43-19,030.69-5,289.67

Finding the Fourth Proportional to 12,684.43, 19,030.69 and 5,289.67

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Solution

The fourth proportional to 12,684.43, 19,030.69 and 5,289.67 is: 7,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.43 : 19,030.69 = 5,289.67 : x
  2. Step 2: Convert to fraction form
    12,684.43/19,030.69 = 5,289.67/x
  3. Step 3: Cross multiply
    12,684.43x = 19,030.69 × 5,289.67
  4. Step 4: Simplify right side
    12,684.43x = 100,666,069.97
  5. Step 5: Solve for x
    x = 100,666,069.97/12,684.43
  6. Step 6: Final answer
    x = 7,936.19

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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.