Home / 14,411.28-19,887.48-8,125.68

Finding the Fourth Proportional to 14,411.28, 19,887.48 and 8,125.68

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Solution

The fourth proportional to 14,411.28, 19,887.48 and 8,125.68 is: 11,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.28 : 19,887.48 = 8,125.68 : x
  2. Step 2: Convert to fraction form
    14,411.28/19,887.48 = 8,125.68/x
  3. Step 3: Cross multiply
    14,411.28x = 19,887.48 × 8,125.68
  4. Step 4: Simplify right side
    14,411.28x = 161,599,298.49
  5. Step 5: Solve for x
    x = 161,599,298.49/14,411.28
  6. Step 6: Final answer
    x = 11,213.39

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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.