Home / 14,371.40-21,529.08-8,112.49

Finding the Fourth Proportional to 14,371.40, 21,529.08 and 8,112.49

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Solution

The fourth proportional to 14,371.40, 21,529.08 and 8,112.49 is: 12,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,371.40 : 21,529.08 = 8,112.49 : x
  2. Step 2: Convert to fraction form
    14,371.40/21,529.08 = 8,112.49/x
  3. Step 3: Cross multiply
    14,371.40x = 21,529.08 × 8,112.49
  4. Step 4: Simplify right side
    14,371.40x = 174,654,446.21
  5. Step 5: Solve for x
    x = 174,654,446.21/14,371.40
  6. Step 6: Final answer
    x = 12,152.92

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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.