Home / 15,845.60-21,908.68-13,877.30

Finding the Fourth Proportional to 15,845.60, 21,908.68 and 13,877.30

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Solution

The fourth proportional to 15,845.60, 21,908.68 and 13,877.30 is: 19,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.60 : 21,908.68 = 13,877.30 : x
  2. Step 2: Convert to fraction form
    15,845.60/21,908.68 = 13,877.30/x
  3. Step 3: Cross multiply
    15,845.60x = 21,908.68 × 13,877.30
  4. Step 4: Simplify right side
    15,845.60x = 304,033,324.96
  5. Step 5: Solve for x
    x = 304,033,324.96/15,845.60
  6. Step 6: Final answer
    x = 19,187.24

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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.