Home / 9,391.11-12,956.40-5,611.65

Finding the Fourth Proportional to 9,391.11, 12,956.40 and 5,611.65

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Solution

The fourth proportional to 9,391.11, 12,956.40 and 5,611.65 is: 7,742.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.11 : 12,956.40 = 5,611.65 : x
  2. Step 2: Convert to fraction form
    9,391.11/12,956.40 = 5,611.65/x
  3. Step 3: Cross multiply
    9,391.11x = 12,956.40 × 5,611.65
  4. Step 4: Simplify right side
    9,391.11x = 72,706,782.06
  5. Step 5: Solve for x
    x = 72,706,782.06/9,391.11
  6. Step 6: Final answer
    x = 7,742.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.