Home / 12,586.42-18,882.66-8,895.86

Finding the Fourth Proportional to 12,586.42, 18,882.66 and 8,895.86

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Solution

The fourth proportional to 12,586.42, 18,882.66 and 8,895.86 is: 13,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.42 : 18,882.66 = 8,895.86 : x
  2. Step 2: Convert to fraction form
    12,586.42/18,882.66 = 8,895.86/x
  3. Step 3: Cross multiply
    12,586.42x = 18,882.66 × 8,895.86
  4. Step 4: Simplify right side
    12,586.42x = 167,977,405.37
  5. Step 5: Solve for x
    x = 167,977,405.37/12,586.42
  6. Step 6: Final answer
    x = 13,345.93

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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.