Home / 13,556.58-18,707.20-7,587.24

Finding the Fourth Proportional to 13,556.58, 18,707.20 and 7,587.24

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Solution

The fourth proportional to 13,556.58, 18,707.20 and 7,587.24 is: 10,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.58 : 18,707.20 = 7,587.24 : x
  2. Step 2: Convert to fraction form
    13,556.58/18,707.20 = 7,587.24/x
  3. Step 3: Cross multiply
    13,556.58x = 18,707.20 × 7,587.24
  4. Step 4: Simplify right side
    13,556.58x = 141,936,016.13
  5. Step 5: Solve for x
    x = 141,936,016.13/13,556.58
  6. Step 6: Final answer
    x = 10,469.90

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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.