Home / 19,114.08-26,379.20-11,154.72

Finding the Fourth Proportional to 19,114.08, 26,379.20 and 11,154.72

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Solution

The fourth proportional to 19,114.08, 26,379.20 and 11,154.72 is: 15,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.08 : 26,379.20 = 11,154.72 : x
  2. Step 2: Convert to fraction form
    19,114.08/26,379.20 = 11,154.72/x
  3. Step 3: Cross multiply
    19,114.08x = 26,379.20 × 11,154.72
  4. Step 4: Simplify right side
    19,114.08x = 294,252,589.82
  5. Step 5: Solve for x
    x = 294,252,589.82/19,114.08
  6. Step 6: Final answer
    x = 15,394.55

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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.