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Finding the Fourth Proportional to 7,888.39, 11,838.45 and 3,729.67

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Solution

The fourth proportional to 7,888.39, 11,838.45 and 3,729.67 is: 5,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.39 : 11,838.45 = 3,729.67 : x
  2. Step 2: Convert to fraction form
    7,888.39/11,838.45 = 3,729.67/x
  3. Step 3: Cross multiply
    7,888.39x = 11,838.45 × 3,729.67
  4. Step 4: Simplify right side
    7,888.39x = 44,153,498.03
  5. Step 5: Solve for x
    x = 44,153,498.03/7,888.39
  6. Step 6: Final answer
    x = 5,597.28

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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.