Home / 19,708.83-27,180.45-12,633.87

Finding the Fourth Proportional to 19,708.83, 27,180.45 and 12,633.87

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Solution

The fourth proportional to 19,708.83, 27,180.45 and 12,633.87 is: 17,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.83 : 27,180.45 = 12,633.87 : x
  2. Step 2: Convert to fraction form
    19,708.83/27,180.45 = 12,633.87/x
  3. Step 3: Cross multiply
    19,708.83x = 27,180.45 × 12,633.87
  4. Step 4: Simplify right side
    19,708.83x = 343,394,271.84
  5. Step 5: Solve for x
    x = 343,394,271.84/19,708.83
  6. Step 6: Final answer
    x = 17,423.37

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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.