Home / 10,302.29-15,439.31-6,786.99

Finding the Fourth Proportional to 10,302.29, 15,439.31 and 6,786.99

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Solution

The fourth proportional to 10,302.29, 15,439.31 and 6,786.99 is: 10,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,302.29 : 15,439.31 = 6,786.99 : x
  2. Step 2: Convert to fraction form
    10,302.29/15,439.31 = 6,786.99/x
  3. Step 3: Cross multiply
    10,302.29x = 15,439.31 × 6,786.99
  4. Step 4: Simplify right side
    10,302.29x = 104,786,434.09
  5. Step 5: Solve for x
    x = 104,786,434.09/10,302.29
  6. Step 6: Final answer
    x = 10,171.18

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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.