Home / 18,760.14-28,131.93-9,993.18

Finding the Fourth Proportional to 18,760.14, 28,131.93 and 9,993.18

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Solution

The fourth proportional to 18,760.14, 28,131.93 and 9,993.18 is: 14,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.14 : 28,131.93 = 9,993.18 : x
  2. Step 2: Convert to fraction form
    18,760.14/28,131.93 = 9,993.18/x
  3. Step 3: Cross multiply
    18,760.14x = 28,131.93 × 9,993.18
  4. Step 4: Simplify right side
    18,760.14x = 281,127,440.24
  5. Step 5: Solve for x
    x = 281,127,440.24/18,760.14
  6. Step 6: Final answer
    x = 14,985.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.