Home / 14,112.81-19,475.70-8,447.79

Finding the Fourth Proportional to 14,112.81, 19,475.70 and 8,447.79

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Solution

The fourth proportional to 14,112.81, 19,475.70 and 8,447.79 is: 11,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.81 : 19,475.70 = 8,447.79 : x
  2. Step 2: Convert to fraction form
    14,112.81/19,475.70 = 8,447.79/x
  3. Step 3: Cross multiply
    14,112.81x = 19,475.70 × 8,447.79
  4. Step 4: Simplify right side
    14,112.81x = 164,526,623.70
  5. Step 5: Solve for x
    x = 164,526,623.70/14,112.81
  6. Step 6: Final answer
    x = 11,657.96

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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.