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Finding the Fourth Proportional to 7,855.40, 10,841.03 and 4,318.67

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Solution

The fourth proportional to 7,855.40, 10,841.03 and 4,318.67 is: 5,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.40 : 10,841.03 = 4,318.67 : x
  2. Step 2: Convert to fraction form
    7,855.40/10,841.03 = 4,318.67/x
  3. Step 3: Cross multiply
    7,855.40x = 10,841.03 × 4,318.67
  4. Step 4: Simplify right side
    7,855.40x = 46,818,755.23
  5. Step 5: Solve for x
    x = 46,818,755.23/7,855.40
  6. Step 6: Final answer
    x = 5,960.08

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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.