Home / 10,777.28-16,165.47-2,985.89

Finding the Fourth Proportional to 10,777.28, 16,165.47 and 2,985.89

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Solution

The fourth proportional to 10,777.28, 16,165.47 and 2,985.89 is: 4,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.28 : 16,165.47 = 2,985.89 : x
  2. Step 2: Convert to fraction form
    10,777.28/16,165.47 = 2,985.89/x
  3. Step 3: Cross multiply
    10,777.28x = 16,165.47 × 2,985.89
  4. Step 4: Simplify right side
    10,777.28x = 48,268,315.22
  5. Step 5: Solve for x
    x = 48,268,315.22/10,777.28
  6. Step 6: Final answer
    x = 4,478.71

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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.