Home / 13,119.45-19,686.38-6,193.77

Finding the Fourth Proportional to 13,119.45, 19,686.38 and 6,193.77

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Solution

The fourth proportional to 13,119.45, 19,686.38 and 6,193.77 is: 9,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.45 : 19,686.38 = 6,193.77 : x
  2. Step 2: Convert to fraction form
    13,119.45/19,686.38 = 6,193.77/x
  3. Step 3: Cross multiply
    13,119.45x = 19,686.38 × 6,193.77
  4. Step 4: Simplify right side
    13,119.45x = 121,932,878.88
  5. Step 5: Solve for x
    x = 121,932,878.88/13,119.45
  6. Step 6: Final answer
    x = 9,294.05

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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.