Home / 18,931.08-28,392.96-7,241.56

Finding the Fourth Proportional to 18,931.08, 28,392.96 and 7,241.56

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Solution

The fourth proportional to 18,931.08, 28,392.96 and 7,241.56 is: 10,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.08 : 28,392.96 = 7,241.56 : x
  2. Step 2: Convert to fraction form
    18,931.08/28,392.96 = 7,241.56/x
  3. Step 3: Cross multiply
    18,931.08x = 28,392.96 × 7,241.56
  4. Step 4: Simplify right side
    18,931.08x = 205,609,323.42
  5. Step 5: Solve for x
    x = 205,609,323.42/18,931.08
  6. Step 6: Final answer
    x = 10,860.94

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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.