Home / 13,887.15-19,164.19-7,513.73

Finding the Fourth Proportional to 13,887.15, 19,164.19 and 7,513.73

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Solution

The fourth proportional to 13,887.15, 19,164.19 and 7,513.73 is: 10,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.15 : 19,164.19 = 7,513.73 : x
  2. Step 2: Convert to fraction form
    13,887.15/19,164.19 = 7,513.73/x
  3. Step 3: Cross multiply
    13,887.15x = 19,164.19 × 7,513.73
  4. Step 4: Simplify right side
    13,887.15x = 143,994,415.94
  5. Step 5: Solve for x
    x = 143,994,415.94/13,887.15
  6. Step 6: Final answer
    x = 10,368.90

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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.