Home / 13,477.15-20,215.73-12,872.35

Finding the Fourth Proportional to 13,477.15, 20,215.73 and 12,872.35

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Solution

The fourth proportional to 13,477.15, 20,215.73 and 12,872.35 is: 19,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.15 : 20,215.73 = 12,872.35 : x
  2. Step 2: Convert to fraction form
    13,477.15/20,215.73 = 12,872.35/x
  3. Step 3: Cross multiply
    13,477.15x = 20,215.73 × 12,872.35
  4. Step 4: Simplify right side
    13,477.15x = 260,223,887.70
  5. Step 5: Solve for x
    x = 260,223,887.70/13,477.15
  6. Step 6: Final answer
    x = 19,308.53

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Similar ratio
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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.