Home / 18,587.87-25,650.56-10,629.89

Finding the Fourth Proportional to 18,587.87, 25,650.56 and 10,629.89

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Solution

The fourth proportional to 18,587.87, 25,650.56 and 10,629.89 is: 14,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.87 : 25,650.56 = 10,629.89 : x
  2. Step 2: Convert to fraction form
    18,587.87/25,650.56 = 10,629.89/x
  3. Step 3: Cross multiply
    18,587.87x = 25,650.56 × 10,629.89
  4. Step 4: Simplify right side
    18,587.87x = 272,662,529.56
  5. Step 5: Solve for x
    x = 272,662,529.56/18,587.87
  6. Step 6: Final answer
    x = 14,668.85

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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.