Home / 12,445.72-18,673.62-12,249.16

Finding the Fourth Proportional to 12,445.72, 18,673.62 and 12,249.16

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Solution

The fourth proportional to 12,445.72, 18,673.62 and 12,249.16 is: 18,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.72 : 18,673.62 = 12,249.16 : x
  2. Step 2: Convert to fraction form
    12,445.72/18,673.62 = 12,249.16/x
  3. Step 3: Cross multiply
    12,445.72x = 18,673.62 × 12,249.16
  4. Step 4: Simplify right side
    12,445.72x = 228,736,159.16
  5. Step 5: Solve for x
    x = 228,736,159.16/12,445.72
  6. Step 6: Final answer
    x = 18,378.70

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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.