Home / 13,884.03-19,158.81-7,914.57

Finding the Fourth Proportional to 13,884.03, 19,158.81 and 7,914.57

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Solution

The fourth proportional to 13,884.03, 19,158.81 and 7,914.57 is: 10,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.03 : 19,158.81 = 7,914.57 : x
  2. Step 2: Convert to fraction form
    13,884.03/19,158.81 = 7,914.57/x
  3. Step 3: Cross multiply
    13,884.03x = 19,158.81 × 7,914.57
  4. Step 4: Simplify right side
    13,884.03x = 151,633,742.86
  5. Step 5: Solve for x
    x = 151,633,742.86/13,884.03
  6. Step 6: Final answer
    x = 10,921.45

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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.