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Finding the Fourth Proportional to 6,864.99, 9,473.29 and 3,880.95

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Solution

The fourth proportional to 6,864.99, 9,473.29 and 3,880.95 is: 5,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.99 : 9,473.29 = 3,880.95 : x
  2. Step 2: Convert to fraction form
    6,864.99/9,473.29 = 3,880.95/x
  3. Step 3: Cross multiply
    6,864.99x = 9,473.29 × 3,880.95
  4. Step 4: Simplify right side
    6,864.99x = 36,765,319.60
  5. Step 5: Solve for x
    x = 36,765,319.60/6,864.99
  6. Step 6: Final answer
    x = 5,355.48

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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.