Home / 13,420.73-20,126.54-5,098.74

Finding the Fourth Proportional to 13,420.73, 20,126.54 and 5,098.74

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Solution

The fourth proportional to 13,420.73, 20,126.54 and 5,098.74 is: 7,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.73 : 20,126.54 = 5,098.74 : x
  2. Step 2: Convert to fraction form
    13,420.73/20,126.54 = 5,098.74/x
  3. Step 3: Cross multiply
    13,420.73x = 20,126.54 × 5,098.74
  4. Step 4: Simplify right side
    13,420.73x = 102,619,994.56
  5. Step 5: Solve for x
    x = 102,619,994.56/13,420.73
  6. Step 6: Final answer
    x = 7,646.38

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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.