Home / 13,006.12-19,513.56-4,122.90

Finding the Fourth Proportional to 13,006.12, 19,513.56 and 4,122.90

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Solution

The fourth proportional to 13,006.12, 19,513.56 and 4,122.90 is: 6,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,006.12 : 19,513.56 = 4,122.90 : x
  2. Step 2: Convert to fraction form
    13,006.12/19,513.56 = 4,122.90/x
  3. Step 3: Cross multiply
    13,006.12x = 19,513.56 × 4,122.90
  4. Step 4: Simplify right side
    13,006.12x = 80,452,448.79
  5. Step 5: Solve for x
    x = 80,452,448.79/13,006.12
  6. Step 6: Final answer
    x = 6,185.74

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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.