Home / 19,704.16-27,166.76-12,618.64

Finding the Fourth Proportional to 19,704.16, 27,166.76 and 12,618.64

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Solution

The fourth proportional to 19,704.16, 27,166.76 and 12,618.64 is: 17,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.16 : 27,166.76 = 12,618.64 : x
  2. Step 2: Convert to fraction form
    19,704.16/27,166.76 = 12,618.64/x
  3. Step 3: Cross multiply
    19,704.16x = 27,166.76 × 12,618.64
  4. Step 4: Simplify right side
    19,704.16x = 342,807,564.41
  5. Step 5: Solve for x
    x = 342,807,564.41/19,704.16
  6. Step 6: Final answer
    x = 17,397.73

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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.