Home / 19,158.30-28,732.68-8,065.08

Finding the Fourth Proportional to 19,158.30, 28,732.68 and 8,065.08

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Solution

The fourth proportional to 19,158.30, 28,732.68 and 8,065.08 is: 12,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.30 : 28,732.68 = 8,065.08 : x
  2. Step 2: Convert to fraction form
    19,158.30/28,732.68 = 8,065.08/x
  3. Step 3: Cross multiply
    19,158.30x = 28,732.68 × 8,065.08
  4. Step 4: Simplify right side
    19,158.30x = 231,731,362.81
  5. Step 5: Solve for x
    x = 231,731,362.81/19,158.30
  6. Step 6: Final answer
    x = 12,095.61

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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.