Home / 11,749.32-16,211.70-6,715.20

Finding the Fourth Proportional to 11,749.32, 16,211.70 and 6,715.20

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Solution

The fourth proportional to 11,749.32, 16,211.70 and 6,715.20 is: 9,265.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.32 : 16,211.70 = 6,715.20 : x
  2. Step 2: Convert to fraction form
    11,749.32/16,211.70 = 6,715.20/x
  3. Step 3: Cross multiply
    11,749.32x = 16,211.70 × 6,715.20
  4. Step 4: Simplify right side
    11,749.32x = 108,864,807.84
  5. Step 5: Solve for x
    x = 108,864,807.84/11,749.32
  6. Step 6: Final answer
    x = 9,265.63

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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.