Home / 19,206.21-28,790.37-9,199.40

Finding the Fourth Proportional to 19,206.21, 28,790.37 and 9,199.40

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Solution

The fourth proportional to 19,206.21, 28,790.37 and 9,199.40 is: 13,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.21 : 28,790.37 = 9,199.40 : x
  2. Step 2: Convert to fraction form
    19,206.21/28,790.37 = 9,199.40/x
  3. Step 3: Cross multiply
    19,206.21x = 28,790.37 × 9,199.40
  4. Step 4: Simplify right side
    19,206.21x = 264,854,129.78
  5. Step 5: Solve for x
    x = 264,854,129.78/19,206.21
  6. Step 6: Final answer
    x = 13,790.03

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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.