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Finding the Fourth Proportional to 9,959.41, 13,749.51 and 5,981.50

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Solution

The fourth proportional to 9,959.41, 13,749.51 and 5,981.50 is: 8,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.41 : 13,749.51 = 5,981.50 : x
  2. Step 2: Convert to fraction form
    9,959.41/13,749.51 = 5,981.50/x
  3. Step 3: Cross multiply
    9,959.41x = 13,749.51 × 5,981.50
  4. Step 4: Simplify right side
    9,959.41x = 82,242,694.07
  5. Step 5: Solve for x
    x = 82,242,694.07/9,959.41
  6. Step 6: Final answer
    x = 8,257.79

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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.