Home / 13,218.55-18,240.87-10,069.27

Finding the Fourth Proportional to 13,218.55, 18,240.87 and 10,069.27

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Solution

The fourth proportional to 13,218.55, 18,240.87 and 10,069.27 is: 13,895.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.55 : 18,240.87 = 10,069.27 : x
  2. Step 2: Convert to fraction form
    13,218.55/18,240.87 = 10,069.27/x
  3. Step 3: Cross multiply
    13,218.55x = 18,240.87 × 10,069.27
  4. Step 4: Simplify right side
    13,218.55x = 183,672,245.06
  5. Step 5: Solve for x
    x = 183,672,245.06/13,218.55
  6. Step 6: Final answer
    x = 13,895.04

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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.