Home / 11,945.40-16,492.14-10,822.20

Finding the Fourth Proportional to 11,945.40, 16,492.14 and 10,822.20

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Solution

The fourth proportional to 11,945.40, 16,492.14 and 10,822.20 is: 14,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.40 : 16,492.14 = 10,822.20 : x
  2. Step 2: Convert to fraction form
    11,945.40/16,492.14 = 10,822.20/x
  3. Step 3: Cross multiply
    11,945.40x = 16,492.14 × 10,822.20
  4. Step 4: Simplify right side
    11,945.40x = 178,481,237.51
  5. Step 5: Solve for x
    x = 178,481,237.51/11,945.40
  6. Step 6: Final answer
    x = 14,941.42

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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.