Home / 13,369.86-18,447.35-8,653.23

Finding the Fourth Proportional to 13,369.86, 18,447.35 and 8,653.23

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Solution

The fourth proportional to 13,369.86, 18,447.35 and 8,653.23 is: 11,939.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.86 : 18,447.35 = 8,653.23 : x
  2. Step 2: Convert to fraction form
    13,369.86/18,447.35 = 8,653.23/x
  3. Step 3: Cross multiply
    13,369.86x = 18,447.35 × 8,653.23
  4. Step 4: Simplify right side
    13,369.86x = 159,629,119.17
  5. Step 5: Solve for x
    x = 159,629,119.17/13,369.86
  6. Step 6: Final answer
    x = 11,939.48

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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.