Home / 8,459.53-12,688.68-3,779.96

Finding the Fourth Proportional to 8,459.53, 12,688.68 and 3,779.96

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Solution

The fourth proportional to 8,459.53, 12,688.68 and 3,779.96 is: 5,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.53 : 12,688.68 = 3,779.96 : x
  2. Step 2: Convert to fraction form
    8,459.53/12,688.68 = 3,779.96/x
  3. Step 3: Cross multiply
    8,459.53x = 12,688.68 × 3,779.96
  4. Step 4: Simplify right side
    8,459.53x = 47,962,653.58
  5. Step 5: Solve for x
    x = 47,962,653.58/8,459.53
  6. Step 6: Final answer
    x = 5,669.66

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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.