Home / 18,628.76-25,706.40-11,074.70

Finding the Fourth Proportional to 18,628.76, 25,706.40 and 11,074.70

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Solution

The fourth proportional to 18,628.76, 25,706.40 and 11,074.70 is: 15,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.76 : 25,706.40 = 11,074.70 : x
  2. Step 2: Convert to fraction form
    18,628.76/25,706.40 = 11,074.70/x
  3. Step 3: Cross multiply
    18,628.76x = 25,706.40 × 11,074.70
  4. Step 4: Simplify right side
    18,628.76x = 284,690,668.08
  5. Step 5: Solve for x
    x = 284,690,668.08/18,628.76
  6. Step 6: Final answer
    x = 15,282.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.