Home / 13,918.01-20,867.56-5,148.14

Finding the Fourth Proportional to 13,918.01, 20,867.56 and 5,148.14

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Solution

The fourth proportional to 13,918.01, 20,867.56 and 5,148.14 is: 7,718.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.01 : 20,867.56 = 5,148.14 : x
  2. Step 2: Convert to fraction form
    13,918.01/20,867.56 = 5,148.14/x
  3. Step 3: Cross multiply
    13,918.01x = 20,867.56 × 5,148.14
  4. Step 4: Simplify right side
    13,918.01x = 107,429,003.13
  5. Step 5: Solve for x
    x = 107,429,003.13/13,918.01
  6. Step 6: Final answer
    x = 7,718.71

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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.