Home / 13,712.92-20,567.77-3,853.05

Finding the Fourth Proportional to 13,712.92, 20,567.77 and 3,853.05

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Solution

The fourth proportional to 13,712.92, 20,567.77 and 3,853.05 is: 5,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.92 : 20,567.77 = 3,853.05 : x
  2. Step 2: Convert to fraction form
    13,712.92/20,567.77 = 3,853.05/x
  3. Step 3: Cross multiply
    13,712.92x = 20,567.77 × 3,853.05
  4. Step 4: Simplify right side
    13,712.92x = 79,248,646.20
  5. Step 5: Solve for x
    x = 79,248,646.20/13,712.92
  6. Step 6: Final answer
    x = 5,779.12

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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.