Home / 15,941.42-21,999.87-13,284.38

Finding the Fourth Proportional to 15,941.42, 21,999.87 and 13,284.38

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Solution

The fourth proportional to 15,941.42, 21,999.87 and 13,284.38 is: 18,333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.42 : 21,999.87 = 13,284.38 : x
  2. Step 2: Convert to fraction form
    15,941.42/21,999.87 = 13,284.38/x
  3. Step 3: Cross multiply
    15,941.42x = 21,999.87 × 13,284.38
  4. Step 4: Simplify right side
    15,941.42x = 292,254,633.03
  5. Step 5: Solve for x
    x = 292,254,633.03/15,941.42
  6. Step 6: Final answer
    x = 18,333.04

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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.