Home / 7,209.81-10,811.68-4,432.32

Finding the Fourth Proportional to 7,209.81, 10,811.68 and 4,432.32

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Solution

The fourth proportional to 7,209.81, 10,811.68 and 4,432.32 is: 6,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.81 : 10,811.68 = 4,432.32 : x
  2. Step 2: Convert to fraction form
    7,209.81/10,811.68 = 4,432.32/x
  3. Step 3: Cross multiply
    7,209.81x = 10,811.68 × 4,432.32
  4. Step 4: Simplify right side
    7,209.81x = 47,920,814.42
  5. Step 5: Solve for x
    x = 47,920,814.42/7,209.81
  6. Step 6: Final answer
    x = 6,646.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.