Home / 10,686.21-16,030.53-3,666.75

Finding the Fourth Proportional to 10,686.21, 16,030.53 and 3,666.75

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Solution

The fourth proportional to 10,686.21, 16,030.53 and 3,666.75 is: 5,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.21 : 16,030.53 = 3,666.75 : x
  2. Step 2: Convert to fraction form
    10,686.21/16,030.53 = 3,666.75/x
  3. Step 3: Cross multiply
    10,686.21x = 16,030.53 × 3,666.75
  4. Step 4: Simplify right side
    10,686.21x = 58,779,945.88
  5. Step 5: Solve for x
    x = 58,779,945.88/10,686.21
  6. Step 6: Final answer
    x = 5,500.54

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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.