Home / 13,331.08-18,399.84-8,554.84

Finding the Fourth Proportional to 13,331.08, 18,399.84 and 8,554.84

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Solution

The fourth proportional to 13,331.08, 18,399.84 and 8,554.84 is: 11,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.08 : 18,399.84 = 8,554.84 : x
  2. Step 2: Convert to fraction form
    13,331.08/18,399.84 = 8,554.84/x
  3. Step 3: Cross multiply
    13,331.08x = 18,399.84 × 8,554.84
  4. Step 4: Simplify right side
    13,331.08x = 157,407,687.23
  5. Step 5: Solve for x
    x = 157,407,687.23/13,331.08
  6. Step 6: Final answer
    x = 11,807.57

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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.