Home / 17,378.73-23,982.65-9,420.93

Finding the Fourth Proportional to 17,378.73, 23,982.65 and 9,420.93

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Solution

The fourth proportional to 17,378.73, 23,982.65 and 9,420.93 is: 13,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.73 : 23,982.65 = 9,420.93 : x
  2. Step 2: Convert to fraction form
    17,378.73/23,982.65 = 9,420.93/x
  3. Step 3: Cross multiply
    17,378.73x = 23,982.65 × 9,420.93
  4. Step 4: Simplify right side
    17,378.73x = 225,938,855.09
  5. Step 5: Solve for x
    x = 225,938,855.09/17,378.73
  6. Step 6: Final answer
    x = 13,000.88

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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.