Home / 11,892.80-16,412.30-6,856.18

Finding the Fourth Proportional to 11,892.80, 16,412.30 and 6,856.18

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Solution

The fourth proportional to 11,892.80, 16,412.30 and 6,856.18 is: 9,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.80 : 16,412.30 = 6,856.18 : x
  2. Step 2: Convert to fraction form
    11,892.80/16,412.30 = 6,856.18/x
  3. Step 3: Cross multiply
    11,892.80x = 16,412.30 × 6,856.18
  4. Step 4: Simplify right side
    11,892.80x = 112,525,683.01
  5. Step 5: Solve for x
    x = 112,525,683.01/11,892.80
  6. Step 6: Final answer
    x = 9,461.66

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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.