Home / 8,911.28-13,358.10-4,223

Finding the Fourth Proportional to 8,911.28, 13,358.10 and 4,223

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Solution

The fourth proportional to 8,911.28, 13,358.10 and 4,223 is: 6,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.28 : 13,358.10 = 4,223 : x
  2. Step 2: Convert to fraction form
    8,911.28/13,358.10 = 4,223/x
  3. Step 3: Cross multiply
    8,911.28x = 13,358.10 × 4,223
  4. Step 4: Simplify right side
    8,911.28x = 56,411,256.30
  5. Step 5: Solve for x
    x = 56,411,256.30/8,911.28
  6. Step 6: Final answer
    x = 6,330.32

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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.