Home / 11,427.12-15,768-6,711.30

Finding the Fourth Proportional to 11,427.12, 15,768 and 6,711.30

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Solution

The fourth proportional to 11,427.12, 15,768 and 6,711.30 is: 9,260.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.12 : 15,768 = 6,711.30 : x
  2. Step 2: Convert to fraction form
    11,427.12/15,768 = 6,711.30/x
  3. Step 3: Cross multiply
    11,427.12x = 15,768 × 6,711.30
  4. Step 4: Simplify right side
    11,427.12x = 105,823,778.40
  5. Step 5: Solve for x
    x = 105,823,778.40/11,427.12
  6. Step 6: Final answer
    x = 9,260.76

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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.