Home / 13,280.67-19,923.44-5,490.09

Finding the Fourth Proportional to 13,280.67, 19,923.44 and 5,490.09

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Solution

The fourth proportional to 13,280.67, 19,923.44 and 5,490.09 is: 8,236.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.67 : 19,923.44 = 5,490.09 : x
  2. Step 2: Convert to fraction form
    13,280.67/19,923.44 = 5,490.09/x
  3. Step 3: Cross multiply
    13,280.67x = 19,923.44 × 5,490.09
  4. Step 4: Simplify right side
    13,280.67x = 109,381,451.26
  5. Step 5: Solve for x
    x = 109,381,451.26/13,280.67
  6. Step 6: Final answer
    x = 8,236.14

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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.