Home / 18,860.20-26,027.92-11,307.76

Finding the Fourth Proportional to 18,860.20, 26,027.92 and 11,307.76

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Solution

The fourth proportional to 18,860.20, 26,027.92 and 11,307.76 is: 15,605.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.20 : 26,027.92 = 11,307.76 : x
  2. Step 2: Convert to fraction form
    18,860.20/26,027.92 = 11,307.76/x
  3. Step 3: Cross multiply
    18,860.20x = 26,027.92 × 11,307.76
  4. Step 4: Simplify right side
    18,860.20x = 294,317,472.66
  5. Step 5: Solve for x
    x = 294,317,472.66/18,860.20
  6. Step 6: Final answer
    x = 15,605.21

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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.