Home / 11,172.32-15,425.02-6,927.90

Finding the Fourth Proportional to 11,172.32, 15,425.02 and 6,927.90

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Solution

The fourth proportional to 11,172.32, 15,425.02 and 6,927.90 is: 9,564.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.32 : 15,425.02 = 6,927.90 : x
  2. Step 2: Convert to fraction form
    11,172.32/15,425.02 = 6,927.90/x
  3. Step 3: Cross multiply
    11,172.32x = 15,425.02 × 6,927.90
  4. Step 4: Simplify right side
    11,172.32x = 106,862,996.06
  5. Step 5: Solve for x
    x = 106,862,996.06/11,172.32
  6. Step 6: Final answer
    x = 9,564.98

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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.