Home / 19,445.38-26,826.21-11,892.06

Finding the Fourth Proportional to 19,445.38, 26,826.21 and 11,892.06

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Solution

The fourth proportional to 19,445.38, 26,826.21 and 11,892.06 is: 16,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.38 : 26,826.21 = 11,892.06 : x
  2. Step 2: Convert to fraction form
    19,445.38/26,826.21 = 11,892.06/x
  3. Step 3: Cross multiply
    19,445.38x = 26,826.21 × 11,892.06
  4. Step 4: Simplify right side
    19,445.38x = 319,018,898.89
  5. Step 5: Solve for x
    x = 319,018,898.89/19,445.38
  6. Step 6: Final answer
    x = 16,405.90

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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.