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Finding the Fourth Proportional to 9,699.99, 13,382.48 and 6,344.72

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Solution

The fourth proportional to 9,699.99, 13,382.48 and 6,344.72 is: 8,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,699.99 : 13,382.48 = 6,344.72 : x
  2. Step 2: Convert to fraction form
    9,699.99/13,382.48 = 6,344.72/x
  3. Step 3: Cross multiply
    9,699.99x = 13,382.48 × 6,344.72
  4. Step 4: Simplify right side
    9,699.99x = 84,908,088.51
  5. Step 5: Solve for x
    x = 84,908,088.51/9,699.99
  6. Step 6: Final answer
    x = 8,753.42

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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.