Home / 15,322.26-21,146.69-8,607.88

Finding the Fourth Proportional to 15,322.26, 21,146.69 and 8,607.88

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Solution

The fourth proportional to 15,322.26, 21,146.69 and 8,607.88 is: 11,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.26 : 21,146.69 = 8,607.88 : x
  2. Step 2: Convert to fraction form
    15,322.26/21,146.69 = 8,607.88/x
  3. Step 3: Cross multiply
    15,322.26x = 21,146.69 × 8,607.88
  4. Step 4: Simplify right side
    15,322.26x = 182,028,126.88
  5. Step 5: Solve for x
    x = 182,028,126.88/15,322.26
  6. Step 6: Final answer
    x = 11,879.98

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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.