Home / 25,668.16-38,503.59-8,139.35

Finding the Fourth Proportional to 25,668.16, 38,503.59 and 8,139.35

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Solution

The fourth proportional to 25,668.16, 38,503.59 and 8,139.35 is: 12,209.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,668.16 : 38,503.59 = 8,139.35 : x
  2. Step 2: Convert to fraction form
    25,668.16/38,503.59 = 8,139.35/x
  3. Step 3: Cross multiply
    25,668.16x = 38,503.59 × 8,139.35
  4. Step 4: Simplify right side
    25,668.16x = 313,394,195.27
  5. Step 5: Solve for x
    x = 313,394,195.27/25,668.16
  6. Step 6: Final answer
    x = 12,209.46

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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.