Home / 11,006.40-16,509.60-7,315.86

Finding the Fourth Proportional to 11,006.40, 16,509.60 and 7,315.86

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Solution

The fourth proportional to 11,006.40, 16,509.60 and 7,315.86 is: 10,973.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.40 : 16,509.60 = 7,315.86 : x
  2. Step 2: Convert to fraction form
    11,006.40/16,509.60 = 7,315.86/x
  3. Step 3: Cross multiply
    11,006.40x = 16,509.60 × 7,315.86
  4. Step 4: Simplify right side
    11,006.40x = 120,781,922.26
  5. Step 5: Solve for x
    x = 120,781,922.26/11,006.40
  6. Step 6: Final answer
    x = 10,973.79

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Similar ratio
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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.