Home / 15,367.07-21,205.74-8,652.47

Finding the Fourth Proportional to 15,367.07, 21,205.74 and 8,652.47

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Solution

The fourth proportional to 15,367.07, 21,205.74 and 8,652.47 is: 11,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.07 : 21,205.74 = 8,652.47 : x
  2. Step 2: Convert to fraction form
    15,367.07/21,205.74 = 8,652.47/x
  3. Step 3: Cross multiply
    15,367.07x = 21,205.74 × 8,652.47
  4. Step 4: Simplify right side
    15,367.07x = 183,481,923.15
  5. Step 5: Solve for x
    x = 183,481,923.15/15,367.07
  6. Step 6: Final answer
    x = 11,939.95

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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.