Home / 13,246.56-18,300.96-11,278.08

Finding the Fourth Proportional to 13,246.56, 18,300.96 and 11,278.08

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Solution

The fourth proportional to 13,246.56, 18,300.96 and 11,278.08 is: 15,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.56 : 18,300.96 = 11,278.08 : x
  2. Step 2: Convert to fraction form
    13,246.56/18,300.96 = 11,278.08/x
  3. Step 3: Cross multiply
    13,246.56x = 18,300.96 × 11,278.08
  4. Step 4: Simplify right side
    13,246.56x = 206,399,690.96
  5. Step 5: Solve for x
    x = 206,399,690.96/13,246.56
  6. Step 6: Final answer
    x = 15,581.38

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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.