Home / 14,072.13-19,417.85-8,105.74

Finding the Fourth Proportional to 14,072.13, 19,417.85 and 8,105.74

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Solution

The fourth proportional to 14,072.13, 19,417.85 and 8,105.74 is: 11,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.13 : 19,417.85 = 8,105.74 : x
  2. Step 2: Convert to fraction form
    14,072.13/19,417.85 = 8,105.74/x
  3. Step 3: Cross multiply
    14,072.13x = 19,417.85 × 8,105.74
  4. Step 4: Simplify right side
    14,072.13x = 157,395,905.84
  5. Step 5: Solve for x
    x = 157,395,905.84/14,072.13
  6. Step 6: Final answer
    x = 11,184.94

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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.