Home / 18,342.84-25,313.10-9,959.28

Finding the Fourth Proportional to 18,342.84, 25,313.10 and 9,959.28

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Solution

The fourth proportional to 18,342.84, 25,313.10 and 9,959.28 is: 13,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.84 : 25,313.10 = 9,959.28 : x
  2. Step 2: Convert to fraction form
    18,342.84/25,313.10 = 9,959.28/x
  3. Step 3: Cross multiply
    18,342.84x = 25,313.10 × 9,959.28
  4. Step 4: Simplify right side
    18,342.84x = 252,100,250.57
  5. Step 5: Solve for x
    x = 252,100,250.57/18,342.84
  6. Step 6: Final answer
    x = 13,743.80

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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.