Home / 19,150.68-28,740.06-12,574.56

Finding the Fourth Proportional to 19,150.68, 28,740.06 and 12,574.56

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Solution

The fourth proportional to 19,150.68, 28,740.06 and 12,574.56 is: 18,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.68 : 28,740.06 = 12,574.56 : x
  2. Step 2: Convert to fraction form
    19,150.68/28,740.06 = 12,574.56/x
  3. Step 3: Cross multiply
    19,150.68x = 28,740.06 × 12,574.56
  4. Step 4: Simplify right side
    19,150.68x = 361,393,608.87
  5. Step 5: Solve for x
    x = 361,393,608.87/19,150.68
  6. Step 6: Final answer
    x = 18,871.06

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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.