Home / 18,587.07-25,638.48-11,028.05

Finding the Fourth Proportional to 18,587.07, 25,638.48 and 11,028.05

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Solution

The fourth proportional to 18,587.07, 25,638.48 and 11,028.05 is: 15,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.07 : 25,638.48 = 11,028.05 : x
  2. Step 2: Convert to fraction form
    18,587.07/25,638.48 = 11,028.05/x
  3. Step 3: Cross multiply
    18,587.07x = 25,638.48 × 11,028.05
  4. Step 4: Simplify right side
    18,587.07x = 282,742,439.36
  5. Step 5: Solve for x
    x = 282,742,439.36/18,587.07
  6. Step 6: Final answer
    x = 15,211.78

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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.