Home / 18,746.28-25,875-11,668.50

Finding the Fourth Proportional to 18,746.28, 25,875 and 11,668.50

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Solution

The fourth proportional to 18,746.28, 25,875 and 11,668.50 is: 16,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.28 : 25,875 = 11,668.50 : x
  2. Step 2: Convert to fraction form
    18,746.28/25,875 = 11,668.50/x
  3. Step 3: Cross multiply
    18,746.28x = 25,875 × 11,668.50
  4. Step 4: Simplify right side
    18,746.28x = 301,922,437.50
  5. Step 5: Solve for x
    x = 301,922,437.50/18,746.28
  6. Step 6: Final answer
    x = 16,105.73

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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.