Home / 13,666.22-20,502.22-4,431.50

Finding the Fourth Proportional to 13,666.22, 20,502.22 and 4,431.50

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Solution

The fourth proportional to 13,666.22, 20,502.22 and 4,431.50 is: 6,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.22 : 20,502.22 = 4,431.50 : x
  2. Step 2: Convert to fraction form
    13,666.22/20,502.22 = 4,431.50/x
  3. Step 3: Cross multiply
    13,666.22x = 20,502.22 × 4,431.50
  4. Step 4: Simplify right side
    13,666.22x = 90,855,587.93
  5. Step 5: Solve for x
    x = 90,855,587.93/13,666.22
  6. Step 6: Final answer
    x = 6,648.19

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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.