Home / 14,406.41-19,882.79-8,440.45

Finding the Fourth Proportional to 14,406.41, 19,882.79 and 8,440.45

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Solution

The fourth proportional to 14,406.41, 19,882.79 and 8,440.45 is: 11,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406.41 : 19,882.79 = 8,440.45 : x
  2. Step 2: Convert to fraction form
    14,406.41/19,882.79 = 8,440.45/x
  3. Step 3: Cross multiply
    14,406.41x = 19,882.79 × 8,440.45
  4. Step 4: Simplify right side
    14,406.41x = 167,819,770.18
  5. Step 5: Solve for x
    x = 167,819,770.18/14,406.41
  6. Step 6: Final answer
    x = 11,648.97

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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.