Home / 17,679.36-24,397.69-9,721.64

Finding the Fourth Proportional to 17,679.36, 24,397.69 and 9,721.64

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Solution

The fourth proportional to 17,679.36, 24,397.69 and 9,721.64 is: 13,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.36 : 24,397.69 = 9,721.64 : x
  2. Step 2: Convert to fraction form
    17,679.36/24,397.69 = 9,721.64/x
  3. Step 3: Cross multiply
    17,679.36x = 24,397.69 × 9,721.64
  4. Step 4: Simplify right side
    17,679.36x = 237,185,632.16
  5. Step 5: Solve for x
    x = 237,185,632.16/17,679.36
  6. Step 6: Final answer
    x = 13,415.96

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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.