Home / 13,015.08-17,957.70-7,708.97

Finding the Fourth Proportional to 13,015.08, 17,957.70 and 7,708.97

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Solution

The fourth proportional to 13,015.08, 17,957.70 and 7,708.97 is: 10,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.08 : 17,957.70 = 7,708.97 : x
  2. Step 2: Convert to fraction form
    13,015.08/17,957.70 = 7,708.97/x
  3. Step 3: Cross multiply
    13,015.08x = 17,957.70 × 7,708.97
  4. Step 4: Simplify right side
    13,015.08x = 138,435,415.46
  5. Step 5: Solve for x
    x = 138,435,415.46/13,015.08
  6. Step 6: Final answer
    x = 10,636.54

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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.