Home / 13,556.16-18,705.60-7,587.36

Finding the Fourth Proportional to 13,556.16, 18,705.60 and 7,587.36

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Solution

The fourth proportional to 13,556.16, 18,705.60 and 7,587.36 is: 10,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.16 : 18,705.60 = 7,587.36 : x
  2. Step 2: Convert to fraction form
    13,556.16/18,705.60 = 7,587.36/x
  3. Step 3: Cross multiply
    13,556.16x = 18,705.60 × 7,587.36
  4. Step 4: Simplify right side
    13,556.16x = 141,926,121.22
  5. Step 5: Solve for x
    x = 141,926,121.22/13,556.16
  6. Step 6: Final answer
    x = 10,469.49

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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.