Home / 14,360.46-19,816.14-7,986.78

Finding the Fourth Proportional to 14,360.46, 19,816.14 and 7,986.78

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Solution

The fourth proportional to 14,360.46, 19,816.14 and 7,986.78 is: 11,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,360.46 : 19,816.14 = 7,986.78 : x
  2. Step 2: Convert to fraction form
    14,360.46/19,816.14 = 7,986.78/x
  3. Step 3: Cross multiply
    14,360.46x = 19,816.14 × 7,986.78
  4. Step 4: Simplify right side
    14,360.46x = 158,267,150.63
  5. Step 5: Solve for x
    x = 158,267,150.63/14,360.46
  6. Step 6: Final answer
    x = 11,021.04

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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.