Home / 15,730.14-21,707.94-9,016.38

Finding the Fourth Proportional to 15,730.14, 21,707.94 and 9,016.38

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Solution

The fourth proportional to 15,730.14, 21,707.94 and 9,016.38 is: 12,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.14 : 21,707.94 = 9,016.38 : x
  2. Step 2: Convert to fraction form
    15,730.14/21,707.94 = 9,016.38/x
  3. Step 3: Cross multiply
    15,730.14x = 21,707.94 × 9,016.38
  4. Step 4: Simplify right side
    15,730.14x = 195,727,036.06
  5. Step 5: Solve for x
    x = 195,727,036.06/15,730.14
  6. Step 6: Final answer
    x = 12,442.80

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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.