Home / 15,218.37-21,002.19-8,504.16

Finding the Fourth Proportional to 15,218.37, 21,002.19 and 8,504.16

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Solution

The fourth proportional to 15,218.37, 21,002.19 and 8,504.16 is: 11,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.37 : 21,002.19 = 8,504.16 : x
  2. Step 2: Convert to fraction form
    15,218.37/21,002.19 = 8,504.16/x
  3. Step 3: Cross multiply
    15,218.37x = 21,002.19 × 8,504.16
  4. Step 4: Simplify right side
    15,218.37x = 178,605,984.11
  5. Step 5: Solve for x
    x = 178,605,984.11/15,218.37
  6. Step 6: Final answer
    x = 11,736.21

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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.