Home / 13,108.64-18,215.58-12,973.77

Finding the Fourth Proportional to 13,108.64, 18,215.58 and 12,973.77

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Solution

The fourth proportional to 13,108.64, 18,215.58 and 12,973.77 is: 18,028.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.64 : 18,215.58 = 12,973.77 : x
  2. Step 2: Convert to fraction form
    13,108.64/18,215.58 = 12,973.77/x
  3. Step 3: Cross multiply
    13,108.64x = 18,215.58 × 12,973.77
  4. Step 4: Simplify right side
    13,108.64x = 236,324,793.99
  5. Step 5: Solve for x
    x = 236,324,793.99/13,108.64
  6. Step 6: Final answer
    x = 18,028.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.