Home / 10,383.09-14,328.66-6,404.20

Finding the Fourth Proportional to 10,383.09, 14,328.66 and 6,404.20

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Solution

The fourth proportional to 10,383.09, 14,328.66 and 6,404.20 is: 8,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.09 : 14,328.66 = 6,404.20 : x
  2. Step 2: Convert to fraction form
    10,383.09/14,328.66 = 6,404.20/x
  3. Step 3: Cross multiply
    10,383.09x = 14,328.66 × 6,404.20
  4. Step 4: Simplify right side
    10,383.09x = 91,763,592.57
  5. Step 5: Solve for x
    x = 91,763,592.57/10,383.09
  6. Step 6: Final answer
    x = 8,837.80

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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.