Home / 12,516.12-18,767.16-4,191.84

Finding the Fourth Proportional to 12,516.12, 18,767.16 and 4,191.84

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Solution

The fourth proportional to 12,516.12, 18,767.16 and 4,191.84 is: 6,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.12 : 18,767.16 = 4,191.84 : x
  2. Step 2: Convert to fraction form
    12,516.12/18,767.16 = 4,191.84/x
  3. Step 3: Cross multiply
    12,516.12x = 18,767.16 × 4,191.84
  4. Step 4: Simplify right side
    12,516.12x = 78,668,931.97
  5. Step 5: Solve for x
    x = 78,668,931.97/12,516.12
  6. Step 6: Final answer
    x = 6,285.41

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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.