Home / 19,209.70-26,499.98-12,837.86

Finding the Fourth Proportional to 19,209.70, 26,499.98 and 12,837.86

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Solution

The fourth proportional to 19,209.70, 26,499.98 and 12,837.86 is: 17,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.70 : 26,499.98 = 12,837.86 : x
  2. Step 2: Convert to fraction form
    19,209.70/26,499.98 = 12,837.86/x
  3. Step 3: Cross multiply
    19,209.70x = 26,499.98 × 12,837.86
  4. Step 4: Simplify right side
    19,209.70x = 340,203,109.06
  5. Step 5: Solve for x
    x = 340,203,109.06/19,209.70
  6. Step 6: Final answer
    x = 17,709.97

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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.