Home / 14,556.21-20,087.69-8,424.51

Finding the Fourth Proportional to 14,556.21, 20,087.69 and 8,424.51

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Solution

The fourth proportional to 14,556.21, 20,087.69 and 8,424.51 is: 11,625.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.21 : 20,087.69 = 8,424.51 : x
  2. Step 2: Convert to fraction form
    14,556.21/20,087.69 = 8,424.51/x
  3. Step 3: Cross multiply
    14,556.21x = 20,087.69 × 8,424.51
  4. Step 4: Simplify right side
    14,556.21x = 169,228,945.28
  5. Step 5: Solve for x
    x = 169,228,945.28/14,556.21
  6. Step 6: Final answer
    x = 11,625.89

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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.