Home / 18,795.86-28,184.79-6,312.42

Finding the Fourth Proportional to 18,795.86, 28,184.79 and 6,312.42

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Solution

The fourth proportional to 18,795.86, 28,184.79 and 6,312.42 is: 9,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.86 : 28,184.79 = 6,312.42 : x
  2. Step 2: Convert to fraction form
    18,795.86/28,184.79 = 6,312.42/x
  3. Step 3: Cross multiply
    18,795.86x = 28,184.79 × 6,312.42
  4. Step 4: Simplify right side
    18,795.86x = 177,914,202.81
  5. Step 5: Solve for x
    x = 177,914,202.81/18,795.86
  6. Step 6: Final answer
    x = 9,465.61

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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.