Home / 13,868.01-19,137.86-7,903.14

Finding the Fourth Proportional to 13,868.01, 19,137.86 and 7,903.14

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Solution

The fourth proportional to 13,868.01, 19,137.86 and 7,903.14 is: 10,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.01 : 19,137.86 = 7,903.14 : x
  2. Step 2: Convert to fraction form
    13,868.01/19,137.86 = 7,903.14/x
  3. Step 3: Cross multiply
    13,868.01x = 19,137.86 × 7,903.14
  4. Step 4: Simplify right side
    13,868.01x = 151,249,147.36
  5. Step 5: Solve for x
    x = 151,249,147.36/13,868.01
  6. Step 6: Final answer
    x = 10,906.33

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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.