Home / 19,209.64-26,514.32-12,513.64

Finding the Fourth Proportional to 19,209.64, 26,514.32 and 12,513.64

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Solution

The fourth proportional to 19,209.64, 26,514.32 and 12,513.64 is: 17,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.64 : 26,514.32 = 12,513.64 : x
  2. Step 2: Convert to fraction form
    19,209.64/26,514.32 = 12,513.64/x
  3. Step 3: Cross multiply
    19,209.64x = 26,514.32 × 12,513.64
  4. Step 4: Simplify right side
    19,209.64x = 331,790,655.32
  5. Step 5: Solve for x
    x = 331,790,655.32/19,209.64
  6. Step 6: Final answer
    x = 17,272.09

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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.