Home / 13,977.15-19,288.31-10,408.07

Finding the Fourth Proportional to 13,977.15, 19,288.31 and 10,408.07

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Solution

The fourth proportional to 13,977.15, 19,288.31 and 10,408.07 is: 14,363.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.15 : 19,288.31 = 10,408.07 : x
  2. Step 2: Convert to fraction form
    13,977.15/19,288.31 = 10,408.07/x
  3. Step 3: Cross multiply
    13,977.15x = 19,288.31 × 10,408.07
  4. Step 4: Simplify right side
    13,977.15x = 200,754,076.84
  5. Step 5: Solve for x
    x = 200,754,076.84/13,977.15
  6. Step 6: Final answer
    x = 14,363.02

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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.