Home / 11,430.57-17,146.43-3,639.99

Finding the Fourth Proportional to 11,430.57, 17,146.43 and 3,639.99

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Solution

The fourth proportional to 11,430.57, 17,146.43 and 3,639.99 is: 5,460.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.57 : 17,146.43 = 3,639.99 : x
  2. Step 2: Convert to fraction form
    11,430.57/17,146.43 = 3,639.99/x
  3. Step 3: Cross multiply
    11,430.57x = 17,146.43 × 3,639.99
  4. Step 4: Simplify right side
    11,430.57x = 62,412,833.74
  5. Step 5: Solve for x
    x = 62,412,833.74/11,430.57
  6. Step 6: Final answer
    x = 5,460.17

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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.