Home / 14,242.70-19,654.93-7,782.43

Finding the Fourth Proportional to 14,242.70, 19,654.93 and 7,782.43

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Solution

The fourth proportional to 14,242.70, 19,654.93 and 7,782.43 is: 10,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.70 : 19,654.93 = 7,782.43 : x
  2. Step 2: Convert to fraction form
    14,242.70/19,654.93 = 7,782.43/x
  3. Step 3: Cross multiply
    14,242.70x = 19,654.93 × 7,782.43
  4. Step 4: Simplify right side
    14,242.70x = 152,962,979.69
  5. Step 5: Solve for x
    x = 152,962,979.69/14,242.70
  6. Step 6: Final answer
    x = 10,739.75

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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.