Home / 15,899.88-21,941.84-9,612.25

Finding the Fourth Proportional to 15,899.88, 21,941.84 and 9,612.25

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Solution

The fourth proportional to 15,899.88, 21,941.84 and 9,612.25 is: 13,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.88 : 21,941.84 = 9,612.25 : x
  2. Step 2: Convert to fraction form
    15,899.88/21,941.84 = 9,612.25/x
  3. Step 3: Cross multiply
    15,899.88x = 21,941.84 × 9,612.25
  4. Step 4: Simplify right side
    15,899.88x = 210,910,451.54
  5. Step 5: Solve for x
    x = 210,910,451.54/15,899.88
  6. Step 6: Final answer
    x = 13,264.91

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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.