Home / 15,323.23-21,145.49-8,517.68

Finding the Fourth Proportional to 15,323.23, 21,145.49 and 8,517.68

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Solution

The fourth proportional to 15,323.23, 21,145.49 and 8,517.68 is: 11,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.23 : 21,145.49 = 8,517.68 : x
  2. Step 2: Convert to fraction form
    15,323.23/21,145.49 = 8,517.68/x
  3. Step 3: Cross multiply
    15,323.23x = 21,145.49 × 8,517.68
  4. Step 4: Simplify right side
    15,323.23x = 180,110,517.26
  5. Step 5: Solve for x
    x = 180,110,517.26/15,323.23
  6. Step 6: Final answer
    x = 11,754.08

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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.