Home / 10,705.20-16,052.48-4,857.68

Finding the Fourth Proportional to 10,705.20, 16,052.48 and 4,857.68

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Solution

The fourth proportional to 10,705.20, 16,052.48 and 4,857.68 is: 7,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,705.20 : 16,052.48 = 4,857.68 : x
  2. Step 2: Convert to fraction form
    10,705.20/16,052.48 = 4,857.68/x
  3. Step 3: Cross multiply
    10,705.20x = 16,052.48 × 4,857.68
  4. Step 4: Simplify right side
    10,705.20x = 77,977,811.05
  5. Step 5: Solve for x
    x = 77,977,811.05/10,705.20
  6. Step 6: Final answer
    x = 7,284.11

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Why These Related Problems?

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