Home / 8,206.38-11,329.47-5,419.98

Finding the Fourth Proportional to 8,206.38, 11,329.47 and 5,419.98

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Solution

The fourth proportional to 8,206.38, 11,329.47 and 5,419.98 is: 7,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.38 : 11,329.47 = 5,419.98 : x
  2. Step 2: Convert to fraction form
    8,206.38/11,329.47 = 5,419.98/x
  3. Step 3: Cross multiply
    8,206.38x = 11,329.47 × 5,419.98
  4. Step 4: Simplify right side
    8,206.38x = 61,405,500.81
  5. Step 5: Solve for x
    x = 61,405,500.81/8,206.38
  6. Step 6: Final answer
    x = 7,482.65

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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.