Home / 10,899.89-15,042.33-6,423.83

Finding the Fourth Proportional to 10,899.89, 15,042.33 and 6,423.83

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Solution

The fourth proportional to 10,899.89, 15,042.33 and 6,423.83 is: 8,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.89 : 15,042.33 = 6,423.83 : x
  2. Step 2: Convert to fraction form
    10,899.89/15,042.33 = 6,423.83/x
  3. Step 3: Cross multiply
    10,899.89x = 15,042.33 × 6,423.83
  4. Step 4: Simplify right side
    10,899.89x = 96,629,351.92
  5. Step 5: Solve for x
    x = 96,629,351.92/10,899.89
  6. Step 6: Final answer
    x = 8,865.17

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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.