Home / 10,188.32-15,280.96-4,992.80

Finding the Fourth Proportional to 10,188.32, 15,280.96 and 4,992.80

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Solution

The fourth proportional to 10,188.32, 15,280.96 and 4,992.80 is: 7,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.32 : 15,280.96 = 4,992.80 : x
  2. Step 2: Convert to fraction form
    10,188.32/15,280.96 = 4,992.80/x
  3. Step 3: Cross multiply
    10,188.32x = 15,280.96 × 4,992.80
  4. Step 4: Simplify right side
    10,188.32x = 76,294,777.09
  5. Step 5: Solve for x
    x = 76,294,777.09/10,188.32
  6. Step 6: Final answer
    x = 7,488.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.