Home / 11,071.40-16,605.28-5,518.86

Finding the Fourth Proportional to 11,071.40, 16,605.28 and 5,518.86

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Solution

The fourth proportional to 11,071.40, 16,605.28 and 5,518.86 is: 8,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.40 : 16,605.28 = 5,518.86 : x
  2. Step 2: Convert to fraction form
    11,071.40/16,605.28 = 5,518.86/x
  3. Step 3: Cross multiply
    11,071.40x = 16,605.28 × 5,518.86
  4. Step 4: Simplify right side
    11,071.40x = 91,642,215.58
  5. Step 5: Solve for x
    x = 91,642,215.58/11,071.40
  6. Step 6: Final answer
    x = 8,277.38

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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.