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Finding the Fourth Proportional to 10,317, 15,478.06 and 3,021

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Solution

The fourth proportional to 10,317, 15,478.06 and 3,021 is: 4,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317 : 15,478.06 = 3,021 : x
  2. Step 2: Convert to fraction form
    10,317/15,478.06 = 3,021/x
  3. Step 3: Cross multiply
    10,317x = 15,478.06 × 3,021
  4. Step 4: Simplify right side
    10,317x = 46,759,219.26
  5. Step 5: Solve for x
    x = 46,759,219.26/10,317
  6. Step 6: Final answer
    x = 4,532.25

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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.