Home / 12,951.33-19,427.00-5,160.21

Finding the Fourth Proportional to 12,951.33, 19,427.00 and 5,160.21

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Solution

The fourth proportional to 12,951.33, 19,427.00 and 5,160.21 is: 7,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.33 : 19,427.00 = 5,160.21 : x
  2. Step 2: Convert to fraction form
    12,951.33/19,427.00 = 5,160.21/x
  3. Step 3: Cross multiply
    12,951.33x = 19,427.00 × 5,160.21
  4. Step 4: Simplify right side
    12,951.33x = 100,247,373.87
  5. Step 5: Solve for x
    x = 100,247,373.87/12,951.33
  6. Step 6: Final answer
    x = 7,740.32

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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.