Home / 19,605.24-29,409.12-7,918.56

Finding the Fourth Proportional to 19,605.24, 29,409.12 and 7,918.56

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Solution

The fourth proportional to 19,605.24, 29,409.12 and 7,918.56 is: 11,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.24 : 29,409.12 = 7,918.56 : x
  2. Step 2: Convert to fraction form
    19,605.24/29,409.12 = 7,918.56/x
  3. Step 3: Cross multiply
    19,605.24x = 29,409.12 × 7,918.56
  4. Step 4: Simplify right side
    19,605.24x = 232,877,881.27
  5. Step 5: Solve for x
    x = 232,877,881.27/19,605.24
  6. Step 6: Final answer
    x = 11,878.35

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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.