Home / 12,516.89-17,275.43-7,214.79

Finding the Fourth Proportional to 12,516.89, 17,275.43 and 7,214.79

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Solution

The fourth proportional to 12,516.89, 17,275.43 and 7,214.79 is: 9,957.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.89 : 17,275.43 = 7,214.79 : x
  2. Step 2: Convert to fraction form
    12,516.89/17,275.43 = 7,214.79/x
  3. Step 3: Cross multiply
    12,516.89x = 17,275.43 × 7,214.79
  4. Step 4: Simplify right side
    12,516.89x = 124,638,563.54
  5. Step 5: Solve for x
    x = 124,638,563.54/12,516.89
  6. Step 6: Final answer
    x = 9,957.63

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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.