Home / 15,366.12-21,205.44-8,651.76

Finding the Fourth Proportional to 15,366.12, 21,205.44 and 8,651.76

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Solution

The fourth proportional to 15,366.12, 21,205.44 and 8,651.76 is: 11,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.12 : 21,205.44 = 8,651.76 : x
  2. Step 2: Convert to fraction form
    15,366.12/21,205.44 = 8,651.76/x
  3. Step 3: Cross multiply
    15,366.12x = 21,205.44 × 8,651.76
  4. Step 4: Simplify right side
    15,366.12x = 183,464,377.57
  5. Step 5: Solve for x
    x = 183,464,377.57/15,366.12
  6. Step 6: Final answer
    x = 11,939.54

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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.