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Finding the Fourth Proportional to 14,447.64, 21,672.06 and 7,043.28

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Solution

The fourth proportional to 14,447.64, 21,672.06 and 7,043.28 is: 10,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.64 : 21,672.06 = 7,043.28 : x
  2. Step 2: Convert to fraction form
    14,447.64/21,672.06 = 7,043.28/x
  3. Step 3: Cross multiply
    14,447.64x = 21,672.06 × 7,043.28
  4. Step 4: Simplify right side
    14,447.64x = 152,642,386.76
  5. Step 5: Solve for x
    x = 152,642,386.76/14,447.64
  6. Step 6: Final answer
    x = 10,565.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.