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Finding the Fourth Proportional to 11,007.58, 16,511.65 and 9,437.80

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Solution

The fourth proportional to 11,007.58, 16,511.65 and 9,437.80 is: 14,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.58 : 16,511.65 = 9,437.80 : x
  2. Step 2: Convert to fraction form
    11,007.58/16,511.65 = 9,437.80/x
  3. Step 3: Cross multiply
    11,007.58x = 16,511.65 × 9,437.80
  4. Step 4: Simplify right side
    11,007.58x = 155,833,650.37
  5. Step 5: Solve for x
    x = 155,833,650.37/11,007.58
  6. Step 6: Final answer
    x = 14,156.94

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1.5x scale

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.