Home / 18,975.08-28,459.92-11,933.63

Finding the Fourth Proportional to 18,975.08, 28,459.92 and 11,933.63

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Solution

The fourth proportional to 18,975.08, 28,459.92 and 11,933.63 is: 17,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.08 : 28,459.92 = 11,933.63 : x
  2. Step 2: Convert to fraction form
    18,975.08/28,459.92 = 11,933.63/x
  3. Step 3: Cross multiply
    18,975.08x = 28,459.92 × 11,933.63
  4. Step 4: Simplify right side
    18,975.08x = 339,630,012.81
  5. Step 5: Solve for x
    x = 339,630,012.81/18,975.08
  6. Step 6: Final answer
    x = 17,898.74

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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.