Home / 25,447.11-38,176.20-7,918.35

Finding the Fourth Proportional to 25,447.11, 38,176.20 and 7,918.35

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Solution

The fourth proportional to 25,447.11, 38,176.20 and 7,918.35 is: 11,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,447.11 : 38,176.20 = 7,918.35 : x
  2. Step 2: Convert to fraction form
    25,447.11/38,176.20 = 7,918.35/x
  3. Step 3: Cross multiply
    25,447.11x = 38,176.20 × 7,918.35
  4. Step 4: Simplify right side
    25,447.11x = 302,292,513.27
  5. Step 5: Solve for x
    x = 302,292,513.27/25,447.11
  6. Step 6: Final answer
    x = 11,879.25

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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.