Home / 18,558.65-25,609.84-11,005.70

Finding the Fourth Proportional to 18,558.65, 25,609.84 and 11,005.70

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Solution

The fourth proportional to 18,558.65, 25,609.84 and 11,005.70 is: 15,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.65 : 25,609.84 = 11,005.70 : x
  2. Step 2: Convert to fraction form
    18,558.65/25,609.84 = 11,005.70/x
  3. Step 3: Cross multiply
    18,558.65x = 25,609.84 × 11,005.70
  4. Step 4: Simplify right side
    18,558.65x = 281,854,060.52
  5. Step 5: Solve for x
    x = 281,854,060.52/18,558.65
  6. Step 6: Final answer
    x = 15,187.21

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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.