Home / 10,089.30-13,930.09-6,313.99

Finding the Fourth Proportional to 10,089.30, 13,930.09 and 6,313.99

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Solution

The fourth proportional to 10,089.30, 13,930.09 and 6,313.99 is: 8,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.30 : 13,930.09 = 6,313.99 : x
  2. Step 2: Convert to fraction form
    10,089.30/13,930.09 = 6,313.99/x
  3. Step 3: Cross multiply
    10,089.30x = 13,930.09 × 6,313.99
  4. Step 4: Simplify right side
    10,089.30x = 87,954,398.35
  5. Step 5: Solve for x
    x = 87,954,398.35/10,089.30
  6. Step 6: Final answer
    x = 8,717.59

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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.