Home / 11,856.20-16,364.81-7,377.28

Finding the Fourth Proportional to 11,856.20, 16,364.81 and 7,377.28

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Solution

The fourth proportional to 11,856.20, 16,364.81 and 7,377.28 is: 10,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.20 : 16,364.81 = 7,377.28 : x
  2. Step 2: Convert to fraction form
    11,856.20/16,364.81 = 7,377.28/x
  3. Step 3: Cross multiply
    11,856.20x = 16,364.81 × 7,377.28
  4. Step 4: Simplify right side
    11,856.20x = 120,727,785.52
  5. Step 5: Solve for x
    x = 120,727,785.52/11,856.20
  6. Step 6: Final answer
    x = 10,182.67

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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.