Home / 13,131.15-19,680.30-6,559.17

Finding the Fourth Proportional to 13,131.15, 19,680.30 and 6,559.17

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Solution

The fourth proportional to 13,131.15, 19,680.30 and 6,559.17 is: 9,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.15 : 19,680.30 = 6,559.17 : x
  2. Step 2: Convert to fraction form
    13,131.15/19,680.30 = 6,559.17/x
  3. Step 3: Cross multiply
    13,131.15x = 19,680.30 × 6,559.17
  4. Step 4: Simplify right side
    13,131.15x = 129,086,433.35
  5. Step 5: Solve for x
    x = 129,086,433.35/13,131.15
  6. Step 6: Final answer
    x = 9,830.55

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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.