Home / 8,207.38-11,330.85-5,420.98

Finding the Fourth Proportional to 8,207.38, 11,330.85 and 5,420.98

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Solution

The fourth proportional to 8,207.38, 11,330.85 and 5,420.98 is: 7,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.38 : 11,330.85 = 5,420.98 : x
  2. Step 2: Convert to fraction form
    8,207.38/11,330.85 = 5,420.98/x
  3. Step 3: Cross multiply
    8,207.38x = 11,330.85 × 5,420.98
  4. Step 4: Simplify right side
    8,207.38x = 61,424,311.23
  5. Step 5: Solve for x
    x = 61,424,311.23/8,207.38
  6. Step 6: Final answer
    x = 7,484.03

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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.