Home / 12,805.46-19,211.28-4,040.35

Finding the Fourth Proportional to 12,805.46, 19,211.28 and 4,040.35

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Solution

The fourth proportional to 12,805.46, 19,211.28 and 4,040.35 is: 6,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805.46 : 19,211.28 = 4,040.35 : x
  2. Step 2: Convert to fraction form
    12,805.46/19,211.28 = 4,040.35/x
  3. Step 3: Cross multiply
    12,805.46x = 19,211.28 × 4,040.35
  4. Step 4: Simplify right side
    12,805.46x = 77,620,231.97
  5. Step 5: Solve for x
    x = 77,620,231.97/12,805.46
  6. Step 6: Final answer
    x = 6,061.50

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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.