Home / 10,902.12-15,040.26-8,534.76

Finding the Fourth Proportional to 10,902.12, 15,040.26 and 8,534.76

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Solution

The fourth proportional to 10,902.12, 15,040.26 and 8,534.76 is: 11,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.12 : 15,040.26 = 8,534.76 : x
  2. Step 2: Convert to fraction form
    10,902.12/15,040.26 = 8,534.76/x
  3. Step 3: Cross multiply
    10,902.12x = 15,040.26 × 8,534.76
  4. Step 4: Simplify right side
    10,902.12x = 128,365,009.44
  5. Step 5: Solve for x
    x = 128,365,009.44/10,902.12
  6. Step 6: Final answer
    x = 11,774.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.