Home / 16,257.41-22,431.78-9,887.32

Finding the Fourth Proportional to 16,257.41, 22,431.78 and 9,887.32

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Solution

The fourth proportional to 16,257.41, 22,431.78 and 9,887.32 is: 13,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,257.41 : 22,431.78 = 9,887.32 : x
  2. Step 2: Convert to fraction form
    16,257.41/22,431.78 = 9,887.32/x
  3. Step 3: Cross multiply
    16,257.41x = 22,431.78 × 9,887.32
  4. Step 4: Simplify right side
    16,257.41x = 221,790,130.95
  5. Step 5: Solve for x
    x = 221,790,130.95/16,257.41
  6. Step 6: Final answer
    x = 13,642.41

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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.