Home / 11,811.30-16,291.17-7,615.50

Finding the Fourth Proportional to 11,811.30, 16,291.17 and 7,615.50

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Solution

The fourth proportional to 11,811.30, 16,291.17 and 7,615.50 is: 10,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.30 : 16,291.17 = 7,615.50 : x
  2. Step 2: Convert to fraction form
    11,811.30/16,291.17 = 7,615.50/x
  3. Step 3: Cross multiply
    11,811.30x = 16,291.17 × 7,615.50
  4. Step 4: Simplify right side
    11,811.30x = 124,065,405.14
  5. Step 5: Solve for x
    x = 124,065,405.14/11,811.30
  6. Step 6: Final answer
    x = 10,503.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.