Home / 13,435.56-20,156.52-13,212.42

Finding the Fourth Proportional to 13,435.56, 20,156.52 and 13,212.42

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Solution

The fourth proportional to 13,435.56, 20,156.52 and 13,212.42 is: 19,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.56 : 20,156.52 = 13,212.42 : x
  2. Step 2: Convert to fraction form
    13,435.56/20,156.52 = 13,212.42/x
  3. Step 3: Cross multiply
    13,435.56x = 20,156.52 × 13,212.42
  4. Step 4: Simplify right side
    13,435.56x = 266,316,407.98
  5. Step 5: Solve for x
    x = 266,316,407.98/13,435.56
  6. Step 6: Final answer
    x = 19,821.76

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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.