Home / 14,122.96-19,486.74-8,154.34

Finding the Fourth Proportional to 14,122.96, 19,486.74 and 8,154.34

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Solution

The fourth proportional to 14,122.96, 19,486.74 and 8,154.34 is: 11,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.96 : 19,486.74 = 8,154.34 : x
  2. Step 2: Convert to fraction form
    14,122.96/19,486.74 = 8,154.34/x
  3. Step 3: Cross multiply
    14,122.96x = 19,486.74 × 8,154.34
  4. Step 4: Simplify right side
    14,122.96x = 158,901,485.31
  5. Step 5: Solve for x
    x = 158,901,485.31/14,122.96
  6. Step 6: Final answer
    x = 11,251.29

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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.