Home / 43,508.12-65,262.23-11,918.45

Finding the Fourth Proportional to 43,508.12, 65,262.23 and 11,918.45

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Solution

The fourth proportional to 43,508.12, 65,262.23 and 11,918.45 is: 17,877.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,508.12 : 65,262.23 = 11,918.45 : x
  2. Step 2: Convert to fraction form
    43,508.12/65,262.23 = 11,918.45/x
  3. Step 3: Cross multiply
    43,508.12x = 65,262.23 × 11,918.45
  4. Step 4: Simplify right side
    43,508.12x = 777,824,788.30
  5. Step 5: Solve for x
    x = 777,824,788.30/43,508.12
  6. Step 6: Final answer
    x = 17,877.69

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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.