Home / 8,206.28-11,329.34-5,416.64

Finding the Fourth Proportional to 8,206.28, 11,329.34 and 5,416.64

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Solution

The fourth proportional to 8,206.28, 11,329.34 and 5,416.64 is: 7,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.28 : 11,329.34 = 5,416.64 : x
  2. Step 2: Convert to fraction form
    8,206.28/11,329.34 = 5,416.64/x
  3. Step 3: Cross multiply
    8,206.28x = 11,329.34 × 5,416.64
  4. Step 4: Simplify right side
    8,206.28x = 61,366,956.22
  5. Step 5: Solve for x
    x = 61,366,956.22/8,206.28
  6. Step 6: Final answer
    x = 7,478.05

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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.