Home / 13,326.42-18,368.55-9,447.12

Finding the Fourth Proportional to 13,326.42, 18,368.55 and 9,447.12

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Solution

The fourth proportional to 13,326.42, 18,368.55 and 9,447.12 is: 13,021.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.42 : 18,368.55 = 9,447.12 : x
  2. Step 2: Convert to fraction form
    13,326.42/18,368.55 = 9,447.12/x
  3. Step 3: Cross multiply
    13,326.42x = 18,368.55 × 9,447.12
  4. Step 4: Simplify right side
    13,326.42x = 173,529,896.08
  5. Step 5: Solve for x
    x = 173,529,896.08/13,326.42
  6. Step 6: Final answer
    x = 13,021.49

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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.