Home / 15,730.07-21,708.01-9,016.97

Finding the Fourth Proportional to 15,730.07, 21,708.01 and 9,016.97

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Solution

The fourth proportional to 15,730.07, 21,708.01 and 9,016.97 is: 12,443.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.07 : 21,708.01 = 9,016.97 : x
  2. Step 2: Convert to fraction form
    15,730.07/21,708.01 = 9,016.97/x
  3. Step 3: Cross multiply
    15,730.07x = 21,708.01 × 9,016.97
  4. Step 4: Simplify right side
    15,730.07x = 195,740,474.93
  5. Step 5: Solve for x
    x = 195,740,474.93/15,730.07
  6. Step 6: Final answer
    x = 12,443.71

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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.