Home / 8,911.91-13,359.04-4,223.63

Finding the Fourth Proportional to 8,911.91, 13,359.04 and 4,223.63

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Solution

The fourth proportional to 8,911.91, 13,359.04 and 4,223.63 is: 6,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.91 : 13,359.04 = 4,223.63 : x
  2. Step 2: Convert to fraction form
    8,911.91/13,359.04 = 4,223.63/x
  3. Step 3: Cross multiply
    8,911.91x = 13,359.04 × 4,223.63
  4. Step 4: Simplify right side
    8,911.91x = 56,423,564.76
  5. Step 5: Solve for x
    x = 56,423,564.76/8,911.91
  6. Step 6: Final answer
    x = 6,331.26

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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.