Home / 13,943.05-20,895.57-7,693.75

Finding the Fourth Proportional to 13,943.05, 20,895.57 and 7,693.75

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Solution

The fourth proportional to 13,943.05, 20,895.57 and 7,693.75 is: 11,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.05 : 20,895.57 = 7,693.75 : x
  2. Step 2: Convert to fraction form
    13,943.05/20,895.57 = 7,693.75/x
  3. Step 3: Cross multiply
    13,943.05x = 20,895.57 × 7,693.75
  4. Step 4: Simplify right side
    13,943.05x = 160,765,291.69
  5. Step 5: Solve for x
    x = 160,765,291.69/13,943.05
  6. Step 6: Final answer
    x = 11,530.14

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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.