Home / 15,346.24-21,170.66-9,968.31

Finding the Fourth Proportional to 15,346.24, 21,170.66 and 9,968.31

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Solution

The fourth proportional to 15,346.24, 21,170.66 and 9,968.31 is: 13,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.24 : 21,170.66 = 9,968.31 : x
  2. Step 2: Convert to fraction form
    15,346.24/21,170.66 = 9,968.31/x
  3. Step 3: Cross multiply
    15,346.24x = 21,170.66 × 9,968.31
  4. Step 4: Simplify right side
    15,346.24x = 211,035,651.94
  5. Step 5: Solve for x
    x = 211,035,651.94/15,346.24
  6. Step 6: Final answer
    x = 13,751.62

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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.