Home / 17,379.40-23,983.70-9,421.75

Finding the Fourth Proportional to 17,379.40, 23,983.70 and 9,421.75

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Solution

The fourth proportional to 17,379.40, 23,983.70 and 9,421.75 is: 13,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,379.40 : 23,983.70 = 9,421.75 : x
  2. Step 2: Convert to fraction form
    17,379.40/23,983.70 = 9,421.75/x
  3. Step 3: Cross multiply
    17,379.40x = 23,983.70 × 9,421.75
  4. Step 4: Simplify right side
    17,379.40x = 225,968,425.48
  5. Step 5: Solve for x
    x = 225,968,425.48/17,379.40
  6. Step 6: Final answer
    x = 13,002.08

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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.