Home / 13,550.24-18,688.80-9,072.56

Finding the Fourth Proportional to 13,550.24, 18,688.80 and 9,072.56

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Solution

The fourth proportional to 13,550.24, 18,688.80 and 9,072.56 is: 12,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.24 : 18,688.80 = 9,072.56 : x
  2. Step 2: Convert to fraction form
    13,550.24/18,688.80 = 9,072.56/x
  3. Step 3: Cross multiply
    13,550.24x = 18,688.80 × 9,072.56
  4. Step 4: Simplify right side
    13,550.24x = 169,555,259.33
  5. Step 5: Solve for x
    x = 169,555,259.33/13,550.24
  6. Step 6: Final answer
    x = 12,513.08

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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.