Home / 8,911.24-13,369.82-2,988.70

Finding the Fourth Proportional to 8,911.24, 13,369.82 and 2,988.70

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Solution

The fourth proportional to 8,911.24, 13,369.82 and 2,988.70 is: 4,484.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.24 : 13,369.82 = 2,988.70 : x
  2. Step 2: Convert to fraction form
    8,911.24/13,369.82 = 2,988.70/x
  3. Step 3: Cross multiply
    8,911.24x = 13,369.82 × 2,988.70
  4. Step 4: Simplify right side
    8,911.24x = 39,958,381.03
  5. Step 5: Solve for x
    x = 39,958,381.03/8,911.24
  6. Step 6: Final answer
    x = 4,484.04

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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.