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Finding the Fourth Proportional to 7,988.76, 11,980.07 and 2,364.88

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Solution

The fourth proportional to 7,988.76, 11,980.07 and 2,364.88 is: 3,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.76 : 11,980.07 = 2,364.88 : x
  2. Step 2: Convert to fraction form
    7,988.76/11,980.07 = 2,364.88/x
  3. Step 3: Cross multiply
    7,988.76x = 11,980.07 × 2,364.88
  4. Step 4: Simplify right side
    7,988.76x = 28,331,427.94
  5. Step 5: Solve for x
    x = 28,331,427.94/7,988.76
  6. Step 6: Final answer
    x = 3,546.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.