Home / 11,336.58-16,985.40-9,003.78

Finding the Fourth Proportional to 11,336.58, 16,985.40 and 9,003.78

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Solution

The fourth proportional to 11,336.58, 16,985.40 and 9,003.78 is: 13,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.58 : 16,985.40 = 9,003.78 : x
  2. Step 2: Convert to fraction form
    11,336.58/16,985.40 = 9,003.78/x
  3. Step 3: Cross multiply
    11,336.58x = 16,985.40 × 9,003.78
  4. Step 4: Simplify right side
    11,336.58x = 152,932,804.81
  5. Step 5: Solve for x
    x = 152,932,804.81/11,336.58
  6. Step 6: Final answer
    x = 13,490.21

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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.