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Finding the Fourth Proportional to 10,340.88, 14,273.04 and 6,621.36

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Solution

The fourth proportional to 10,340.88, 14,273.04 and 6,621.36 is: 9,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.88 : 14,273.04 = 6,621.36 : x
  2. Step 2: Convert to fraction form
    10,340.88/14,273.04 = 6,621.36/x
  3. Step 3: Cross multiply
    10,340.88x = 14,273.04 × 6,621.36
  4. Step 4: Simplify right side
    10,340.88x = 94,506,936.13
  5. Step 5: Solve for x
    x = 94,506,936.13/10,340.88
  6. Step 6: Final answer
    x = 9,139.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.