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Finding the Fourth Proportional to 7,085.69, 10,630.43 and 6,310.99

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Solution

The fourth proportional to 7,085.69, 10,630.43 and 6,310.99 is: 9,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.69 : 10,630.43 = 6,310.99 : x
  2. Step 2: Convert to fraction form
    7,085.69/10,630.43 = 6,310.99/x
  3. Step 3: Cross multiply
    7,085.69x = 10,630.43 × 6,310.99
  4. Step 4: Simplify right side
    7,085.69x = 67,088,537.43
  5. Step 5: Solve for x
    x = 67,088,537.43/7,085.69
  6. Step 6: Final answer
    x = 9,468.17

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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.