Home / 15,396.63-21,247.31-8,323.04

Finding the Fourth Proportional to 15,396.63, 21,247.31 and 8,323.04

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Solution

The fourth proportional to 15,396.63, 21,247.31 and 8,323.04 is: 11,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.63 : 21,247.31 = 8,323.04 : x
  2. Step 2: Convert to fraction form
    15,396.63/21,247.31 = 8,323.04/x
  3. Step 3: Cross multiply
    15,396.63x = 21,247.31 × 8,323.04
  4. Step 4: Simplify right side
    15,396.63x = 176,842,063.17
  5. Step 5: Solve for x
    x = 176,842,063.17/15,396.63
  6. Step 6: Final answer
    x = 11,485.76

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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.