Home / 13,555.32-18,706.22-7,586.92

Finding the Fourth Proportional to 13,555.32, 18,706.22 and 7,586.92

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Solution

The fourth proportional to 13,555.32, 18,706.22 and 7,586.92 is: 10,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.32 : 18,706.22 = 7,586.92 : x
  2. Step 2: Convert to fraction form
    13,555.32/18,706.22 = 7,586.92/x
  3. Step 3: Cross multiply
    13,555.32x = 18,706.22 × 7,586.92
  4. Step 4: Simplify right side
    13,555.32x = 141,922,594.64
  5. Step 5: Solve for x
    x = 141,922,594.64/13,555.32
  6. Step 6: Final answer
    x = 10,469.88

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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.