Home / 43,779.74-65,663.06-12,186.50

Finding the Fourth Proportional to 43,779.74, 65,663.06 and 12,186.50

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Solution

The fourth proportional to 43,779.74, 65,663.06 and 12,186.50 is: 18,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,779.74 : 65,663.06 = 12,186.50 : x
  2. Step 2: Convert to fraction form
    43,779.74/65,663.06 = 12,186.50/x
  3. Step 3: Cross multiply
    43,779.74x = 65,663.06 × 12,186.50
  4. Step 4: Simplify right side
    43,779.74x = 800,202,582.84
  5. Step 5: Solve for x
    x = 800,202,582.84/43,779.74
  6. Step 6: Final answer
    x = 18,277.92

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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.