Home / 10,558.92-15,845.40-3,985.32

Finding the Fourth Proportional to 10,558.92, 15,845.40 and 3,985.32

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Solution

The fourth proportional to 10,558.92, 15,845.40 and 3,985.32 is: 5,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.92 : 15,845.40 = 3,985.32 : x
  2. Step 2: Convert to fraction form
    10,558.92/15,845.40 = 3,985.32/x
  3. Step 3: Cross multiply
    10,558.92x = 15,845.40 × 3,985.32
  4. Step 4: Simplify right side
    10,558.92x = 63,148,989.53
  5. Step 5: Solve for x
    x = 63,148,989.53/10,558.92
  6. Step 6: Final answer
    x = 5,980.63

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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.