Home / 18,745.68-28,059.96-12,510.80

Finding the Fourth Proportional to 18,745.68, 28,059.96 and 12,510.80

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Solution

The fourth proportional to 18,745.68, 28,059.96 and 12,510.80 is: 18,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.68 : 28,059.96 = 12,510.80 : x
  2. Step 2: Convert to fraction form
    18,745.68/28,059.96 = 12,510.80/x
  3. Step 3: Cross multiply
    18,745.68x = 28,059.96 × 12,510.80
  4. Step 4: Simplify right side
    18,745.68x = 351,052,547.57
  5. Step 5: Solve for x
    x = 351,052,547.57/18,745.68
  6. Step 6: Final answer
    x = 18,727.12

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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.