Home / 13,798.15-20,682.87-12,580.26

Finding the Fourth Proportional to 13,798.15, 20,682.87 and 12,580.26

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Solution

The fourth proportional to 13,798.15, 20,682.87 and 12,580.26 is: 18,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.15 : 20,682.87 = 12,580.26 : x
  2. Step 2: Convert to fraction form
    13,798.15/20,682.87 = 12,580.26/x
  3. Step 3: Cross multiply
    13,798.15x = 20,682.87 × 12,580.26
  4. Step 4: Simplify right side
    13,798.15x = 260,195,909.13
  5. Step 5: Solve for x
    x = 260,195,909.13/13,798.15
  6. Step 6: Final answer
    x = 18,857.31

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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.