Home / 14,436.05-21,660.75-7,854.39

Finding the Fourth Proportional to 14,436.05, 21,660.75 and 7,854.39

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Solution

The fourth proportional to 14,436.05, 21,660.75 and 7,854.39 is: 11,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436.05 : 21,660.75 = 7,854.39 : x
  2. Step 2: Convert to fraction form
    14,436.05/21,660.75 = 7,854.39/x
  3. Step 3: Cross multiply
    14,436.05x = 21,660.75 × 7,854.39
  4. Step 4: Simplify right side
    14,436.05x = 170,131,978.19
  5. Step 5: Solve for x
    x = 170,131,978.19/14,436.05
  6. Step 6: Final answer
    x = 11,785.22

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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.