Home / 19,160.96-28,712.12-8,061.57

Finding the Fourth Proportional to 19,160.96, 28,712.12 and 8,061.57

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Solution

The fourth proportional to 19,160.96, 28,712.12 and 8,061.57 is: 12,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,160.96 : 28,712.12 = 8,061.57 : x
  2. Step 2: Convert to fraction form
    19,160.96/28,712.12 = 8,061.57/x
  3. Step 3: Cross multiply
    19,160.96x = 28,712.12 × 8,061.57
  4. Step 4: Simplify right side
    19,160.96x = 231,464,724.92
  5. Step 5: Solve for x
    x = 231,464,724.92/19,160.96
  6. Step 6: Final answer
    x = 12,080.02

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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.