Home / 11,806.30-16,292.61-6,428.35

Finding the Fourth Proportional to 11,806.30, 16,292.61 and 6,428.35

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Solution

The fourth proportional to 11,806.30, 16,292.61 and 6,428.35 is: 8,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.30 : 16,292.61 = 6,428.35 : x
  2. Step 2: Convert to fraction form
    11,806.30/16,292.61 = 6,428.35/x
  3. Step 3: Cross multiply
    11,806.30x = 16,292.61 × 6,428.35
  4. Step 4: Simplify right side
    11,806.30x = 104,734,567.35
  5. Step 5: Solve for x
    x = 104,734,567.35/11,806.30
  6. Step 6: Final answer
    x = 8,871.08

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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.