Home / 9,515.75-14,278.74-3,972.89

Finding the Fourth Proportional to 9,515.75, 14,278.74 and 3,972.89

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Solution

The fourth proportional to 9,515.75, 14,278.74 and 3,972.89 is: 5,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.75 : 14,278.74 = 3,972.89 : x
  2. Step 2: Convert to fraction form
    9,515.75/14,278.74 = 3,972.89/x
  3. Step 3: Cross multiply
    9,515.75x = 14,278.74 × 3,972.89
  4. Step 4: Simplify right side
    9,515.75x = 56,727,863.36
  5. Step 5: Solve for x
    x = 56,727,863.36/9,515.75
  6. Step 6: Final answer
    x = 5,961.47

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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.