Home / 43,775.18-65,657.24-12,187.62

Finding the Fourth Proportional to 43,775.18, 65,657.24 and 12,187.62

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Solution

The fourth proportional to 43,775.18, 65,657.24 and 12,187.62 is: 18,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,775.18 : 65,657.24 = 12,187.62 : x
  2. Step 2: Convert to fraction form
    43,775.18/65,657.24 = 12,187.62/x
  3. Step 3: Cross multiply
    43,775.18x = 65,657.24 × 12,187.62
  4. Step 4: Simplify right side
    43,775.18x = 800,205,491.37
  5. Step 5: Solve for x
    x = 800,205,491.37/43,775.18
  6. Step 6: Final answer
    x = 18,279.89

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1.5x scale

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.