Home / 15,899.37-21,940.10-8,825.74

Finding the Fourth Proportional to 15,899.37, 21,940.10 and 8,825.74

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Solution

The fourth proportional to 15,899.37, 21,940.10 and 8,825.74 is: 12,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.37 : 21,940.10 = 8,825.74 : x
  2. Step 2: Convert to fraction form
    15,899.37/21,940.10 = 8,825.74/x
  3. Step 3: Cross multiply
    15,899.37x = 21,940.10 × 8,825.74
  4. Step 4: Simplify right side
    15,899.37x = 193,637,552.29
  5. Step 5: Solve for x
    x = 193,637,552.29/15,899.37
  6. Step 6: Final answer
    x = 12,178.95

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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.