Home / 8,926.08-12,318.90-5,149.38

Finding the Fourth Proportional to 8,926.08, 12,318.90 and 5,149.38

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Solution

The fourth proportional to 8,926.08, 12,318.90 and 5,149.38 is: 7,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.08 : 12,318.90 = 5,149.38 : x
  2. Step 2: Convert to fraction form
    8,926.08/12,318.90 = 5,149.38/x
  3. Step 3: Cross multiply
    8,926.08x = 12,318.90 × 5,149.38
  4. Step 4: Simplify right side
    8,926.08x = 63,434,697.28
  5. Step 5: Solve for x
    x = 63,434,697.28/8,926.08
  6. Step 6: Final answer
    x = 7,106.67

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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.