Home / 15,127.62-20,873.07-8,838.78

Finding the Fourth Proportional to 15,127.62, 20,873.07 and 8,838.78

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Solution

The fourth proportional to 15,127.62, 20,873.07 and 8,838.78 is: 12,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.62 : 20,873.07 = 8,838.78 : x
  2. Step 2: Convert to fraction form
    15,127.62/20,873.07 = 8,838.78/x
  3. Step 3: Cross multiply
    15,127.62x = 20,873.07 × 8,838.78
  4. Step 4: Simplify right side
    15,127.62x = 184,492,473.65
  5. Step 5: Solve for x
    x = 184,492,473.65/15,127.62
  6. Step 6: Final answer
    x = 12,195.74

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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.