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Finding the Fourth Proportional to 16,457.44, 22,709.80 and 9,287.88

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Solution

The fourth proportional to 16,457.44, 22,709.80 and 9,287.88 is: 12,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,457.44 : 22,709.80 = 9,287.88 : x
  2. Step 2: Convert to fraction form
    16,457.44/22,709.80 = 9,287.88/x
  3. Step 3: Cross multiply
    16,457.44x = 22,709.80 × 9,287.88
  4. Step 4: Simplify right side
    16,457.44x = 210,925,897.22
  5. Step 5: Solve for x
    x = 210,925,897.22/16,457.44
  6. Step 6: Final answer
    x = 12,816.45

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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.