Home / 19,418.64-26,790.12-11,953.68

Finding the Fourth Proportional to 19,418.64, 26,790.12 and 11,953.68

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Solution

The fourth proportional to 19,418.64, 26,790.12 and 11,953.68 is: 16,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.64 : 26,790.12 = 11,953.68 : x
  2. Step 2: Convert to fraction form
    19,418.64/26,790.12 = 11,953.68/x
  3. Step 3: Cross multiply
    19,418.64x = 26,790.12 × 11,953.68
  4. Step 4: Simplify right side
    19,418.64x = 320,240,521.64
  5. Step 5: Solve for x
    x = 320,240,521.64/19,418.64
  6. Step 6: Final answer
    x = 16,491.40

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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.