Home / 15,328-21,155.20-11,595.52

Finding the Fourth Proportional to 15,328, 21,155.20 and 11,595.52

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Solution

The fourth proportional to 15,328, 21,155.20 and 11,595.52 is: 16,003.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328 : 21,155.20 = 11,595.52 : x
  2. Step 2: Convert to fraction form
    15,328/21,155.20 = 11,595.52/x
  3. Step 3: Cross multiply
    15,328x = 21,155.20 × 11,595.52
  4. Step 4: Simplify right side
    15,328x = 245,305,544.70
  5. Step 5: Solve for x
    x = 245,305,544.70/15,328
  6. Step 6: Final answer
    x = 16,003.75

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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.