Home / 12,256.36-18,345.66-8,783.08

Finding the Fourth Proportional to 12,256.36, 18,345.66 and 8,783.08

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Solution

The fourth proportional to 12,256.36, 18,345.66 and 8,783.08 is: 13,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.36 : 18,345.66 = 8,783.08 : x
  2. Step 2: Convert to fraction form
    12,256.36/18,345.66 = 8,783.08/x
  3. Step 3: Cross multiply
    12,256.36x = 18,345.66 × 8,783.08
  4. Step 4: Simplify right side
    12,256.36x = 161,131,399.43
  5. Step 5: Solve for x
    x = 161,131,399.43/12,256.36
  6. Step 6: Final answer
    x = 13,146.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.