Home / 13,587.19-20,383.68-4,226.98

Finding the Fourth Proportional to 13,587.19, 20,383.68 and 4,226.98

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Solution

The fourth proportional to 13,587.19, 20,383.68 and 4,226.98 is: 6,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.19 : 20,383.68 = 4,226.98 : x
  2. Step 2: Convert to fraction form
    13,587.19/20,383.68 = 4,226.98/x
  3. Step 3: Cross multiply
    13,587.19x = 20,383.68 × 4,226.98
  4. Step 4: Simplify right side
    13,587.19x = 86,161,407.69
  5. Step 5: Solve for x
    x = 86,161,407.69/13,587.19
  6. Step 6: Final answer
    x = 6,341.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.