Home / 13,943.27-19,241.75-7,656.05

Finding the Fourth Proportional to 13,943.27, 19,241.75 and 7,656.05

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Solution

The fourth proportional to 13,943.27, 19,241.75 and 7,656.05 is: 10,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.27 : 19,241.75 = 7,656.05 : x
  2. Step 2: Convert to fraction form
    13,943.27/19,241.75 = 7,656.05/x
  3. Step 3: Cross multiply
    13,943.27x = 19,241.75 × 7,656.05
  4. Step 4: Simplify right side
    13,943.27x = 147,315,800.09
  5. Step 5: Solve for x
    x = 147,315,800.09/13,943.27
  6. Step 6: Final answer
    x = 10,565.37

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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.