Home / 8,288.62-11,438.20-4,931.38

Finding the Fourth Proportional to 8,288.62, 11,438.20 and 4,931.38

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Solution

The fourth proportional to 8,288.62, 11,438.20 and 4,931.38 is: 6,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.62 : 11,438.20 = 4,931.38 : x
  2. Step 2: Convert to fraction form
    8,288.62/11,438.20 = 4,931.38/x
  3. Step 3: Cross multiply
    8,288.62x = 11,438.20 × 4,931.38
  4. Step 4: Simplify right side
    8,288.62x = 56,406,110.72
  5. Step 5: Solve for x
    x = 56,406,110.72/8,288.62
  6. Step 6: Final answer
    x = 6,805.25

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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.