Home / 15,184.54-20,956.49-8,896.91

Finding the Fourth Proportional to 15,184.54, 20,956.49 and 8,896.91

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Solution

The fourth proportional to 15,184.54, 20,956.49 and 8,896.91 is: 12,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.54 : 20,956.49 = 8,896.91 : x
  2. Step 2: Convert to fraction form
    15,184.54/20,956.49 = 8,896.91/x
  3. Step 3: Cross multiply
    15,184.54x = 20,956.49 × 8,896.91
  4. Step 4: Simplify right side
    15,184.54x = 186,447,960.96
  5. Step 5: Solve for x
    x = 186,447,960.96/15,184.54
  6. Step 6: Final answer
    x = 12,278.81

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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.