Home / 11,065.76-16,605.12-6,139.52

Finding the Fourth Proportional to 11,065.76, 16,605.12 and 6,139.52

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Solution

The fourth proportional to 11,065.76, 16,605.12 and 6,139.52 is: 9,212.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.76 : 16,605.12 = 6,139.52 : x
  2. Step 2: Convert to fraction form
    11,065.76/16,605.12 = 6,139.52/x
  3. Step 3: Cross multiply
    11,065.76x = 16,605.12 × 6,139.52
  4. Step 4: Simplify right side
    11,065.76x = 101,947,466.34
  5. Step 5: Solve for x
    x = 101,947,466.34/11,065.76
  6. Step 6: Final answer
    x = 9,212.88

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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.