Home / 13,977.81-19,289.21-10,408.74

Finding the Fourth Proportional to 13,977.81, 19,289.21 and 10,408.74

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Solution

The fourth proportional to 13,977.81, 19,289.21 and 10,408.74 is: 14,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.81 : 19,289.21 = 10,408.74 : x
  2. Step 2: Convert to fraction form
    13,977.81/19,289.21 = 10,408.74/x
  3. Step 3: Cross multiply
    13,977.81x = 19,289.21 × 10,408.74
  4. Step 4: Simplify right side
    13,977.81x = 200,776,371.70
  5. Step 5: Solve for x
    x = 200,776,371.70/13,977.81
  6. Step 6: Final answer
    x = 14,363.94

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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.