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Finding the Fourth Proportional to 10,393.65, 14,347.96 and 6,621.99

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Solution

The fourth proportional to 10,393.65, 14,347.96 and 6,621.99 is: 9,141.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,393.65 : 14,347.96 = 6,621.99 : x
  2. Step 2: Convert to fraction form
    10,393.65/14,347.96 = 6,621.99/x
  3. Step 3: Cross multiply
    10,393.65x = 14,347.96 × 6,621.99
  4. Step 4: Simplify right side
    10,393.65x = 95,012,047.64
  5. Step 5: Solve for x
    x = 95,012,047.64/10,393.65
  6. Step 6: Final answer
    x = 9,141.36

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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.