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Finding the Fourth Proportional to 9,802.66, 13,520.52 and 6,218.71

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Solution

The fourth proportional to 9,802.66, 13,520.52 and 6,218.71 is: 8,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,802.66 : 13,520.52 = 6,218.71 : x
  2. Step 2: Convert to fraction form
    9,802.66/13,520.52 = 6,218.71/x
  3. Step 3: Cross multiply
    9,802.66x = 13,520.52 × 6,218.71
  4. Step 4: Simplify right side
    9,802.66x = 84,080,192.93
  5. Step 5: Solve for x
    x = 84,080,192.93/9,802.66
  6. Step 6: Final answer
    x = 8,577.28

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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.