Home / 13,417.27-20,125.97-7,866.72

Finding the Fourth Proportional to 13,417.27, 20,125.97 and 7,866.72

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Solution

The fourth proportional to 13,417.27, 20,125.97 and 7,866.72 is: 11,800.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.27 : 20,125.97 = 7,866.72 : x
  2. Step 2: Convert to fraction form
    13,417.27/20,125.97 = 7,866.72/x
  3. Step 3: Cross multiply
    13,417.27x = 20,125.97 × 7,866.72
  4. Step 4: Simplify right side
    13,417.27x = 158,325,370.72
  5. Step 5: Solve for x
    x = 158,325,370.72/13,417.27
  6. Step 6: Final answer
    x = 11,800.12

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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.