Home / 11,381.06-15,707.30-6,904.55

Finding the Fourth Proportional to 11,381.06, 15,707.30 and 6,904.55

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Solution

The fourth proportional to 11,381.06, 15,707.30 and 6,904.55 is: 9,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.06 : 15,707.30 = 6,904.55 : x
  2. Step 2: Convert to fraction form
    11,381.06/15,707.30 = 6,904.55/x
  3. Step 3: Cross multiply
    11,381.06x = 15,707.30 × 6,904.55
  4. Step 4: Simplify right side
    11,381.06x = 108,451,725.16
  5. Step 5: Solve for x
    x = 108,451,725.16/11,381.06
  6. Step 6: Final answer
    x = 9,529.15

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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.