Home / 14,935.36-20,610.48-8,220.64

Finding the Fourth Proportional to 14,935.36, 20,610.48 and 8,220.64

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Solution

The fourth proportional to 14,935.36, 20,610.48 and 8,220.64 is: 11,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,935.36 : 20,610.48 = 8,220.64 : x
  2. Step 2: Convert to fraction form
    14,935.36/20,610.48 = 8,220.64/x
  3. Step 3: Cross multiply
    14,935.36x = 20,610.48 × 8,220.64
  4. Step 4: Simplify right side
    14,935.36x = 169,431,336.31
  5. Step 5: Solve for x
    x = 169,431,336.31/14,935.36
  6. Step 6: Final answer
    x = 11,344.31

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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.