Home / 12,628.36-17,430.96-7,324.48

Finding the Fourth Proportional to 12,628.36, 17,430.96 and 7,324.48

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Solution

The fourth proportional to 12,628.36, 17,430.96 and 7,324.48 is: 10,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.36 : 17,430.96 = 7,324.48 : x
  2. Step 2: Convert to fraction form
    12,628.36/17,430.96 = 7,324.48/x
  3. Step 3: Cross multiply
    12,628.36x = 17,430.96 × 7,324.48
  4. Step 4: Simplify right side
    12,628.36x = 127,672,717.90
  5. Step 5: Solve for x
    x = 127,672,717.90/12,628.36
  6. Step 6: Final answer
    x = 10,110.00

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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.