Home / 18,343.08-25,313.58-9,959.58

Finding the Fourth Proportional to 18,343.08, 25,313.58 and 9,959.58

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Solution

The fourth proportional to 18,343.08, 25,313.58 and 9,959.58 is: 13,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.08 : 25,313.58 = 9,959.58 : x
  2. Step 2: Convert to fraction form
    18,343.08/25,313.58 = 9,959.58/x
  3. Step 3: Cross multiply
    18,343.08x = 25,313.58 × 9,959.58
  4. Step 4: Simplify right side
    18,343.08x = 252,112,625.10
  5. Step 5: Solve for x
    x = 252,112,625.10/18,343.08
  6. Step 6: Final answer
    x = 13,744.29

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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.