Home / 15,131.36-20,883.78-8,842.52

Finding the Fourth Proportional to 15,131.36, 20,883.78 and 8,842.52

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Solution

The fourth proportional to 15,131.36, 20,883.78 and 8,842.52 is: 12,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.36 : 20,883.78 = 8,842.52 : x
  2. Step 2: Convert to fraction form
    15,131.36/20,883.78 = 8,842.52/x
  3. Step 3: Cross multiply
    15,131.36x = 20,883.78 × 8,842.52
  4. Step 4: Simplify right side
    15,131.36x = 184,665,242.33
  5. Step 5: Solve for x
    x = 184,665,242.33/15,131.36
  6. Step 6: Final answer
    x = 12,204.14

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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.