Home / 13,995.14-19,317.27-9,218.57

Finding the Fourth Proportional to 13,995.14, 19,317.27 and 9,218.57

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Solution

The fourth proportional to 13,995.14, 19,317.27 and 9,218.57 is: 12,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.14 : 19,317.27 = 9,218.57 : x
  2. Step 2: Convert to fraction form
    13,995.14/19,317.27 = 9,218.57/x
  3. Step 3: Cross multiply
    13,995.14x = 19,317.27 × 9,218.57
  4. Step 4: Simplify right side
    13,995.14x = 178,077,654.00
  5. Step 5: Solve for x
    x = 178,077,654.00/13,995.14
  6. Step 6: Final answer
    x = 12,724.25

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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.