Home / 18,919.38-26,108.75-10,535.88

Finding the Fourth Proportional to 18,919.38, 26,108.75 and 10,535.88

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Solution

The fourth proportional to 18,919.38, 26,108.75 and 10,535.88 is: 14,539.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.38 : 26,108.75 = 10,535.88 : x
  2. Step 2: Convert to fraction form
    18,919.38/26,108.75 = 10,535.88/x
  3. Step 3: Cross multiply
    18,919.38x = 26,108.75 × 10,535.88
  4. Step 4: Simplify right side
    18,919.38x = 275,078,656.95
  5. Step 5: Solve for x
    x = 275,078,656.95/18,919.38
  6. Step 6: Final answer
    x = 14,539.52

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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.