Home / 18,587.85-25,639.56-11,028.84

Finding the Fourth Proportional to 18,587.85, 25,639.56 and 11,028.84

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Solution

The fourth proportional to 18,587.85, 25,639.56 and 11,028.84 is: 15,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.85 : 25,639.56 = 11,028.84 : x
  2. Step 2: Convert to fraction form
    18,587.85/25,639.56 = 11,028.84/x
  3. Step 3: Cross multiply
    18,587.85x = 25,639.56 × 11,028.84
  4. Step 4: Simplify right side
    18,587.85x = 282,774,604.91
  5. Step 5: Solve for x
    x = 282,774,604.91/18,587.85
  6. Step 6: Final answer
    x = 15,212.87

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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.