Home / 14,122.41-19,486.35-8,151.90

Finding the Fourth Proportional to 14,122.41, 19,486.35 and 8,151.90

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Solution

The fourth proportional to 14,122.41, 19,486.35 and 8,151.90 is: 11,248.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.41 : 19,486.35 = 8,151.90 : x
  2. Step 2: Convert to fraction form
    14,122.41/19,486.35 = 8,151.90/x
  3. Step 3: Cross multiply
    14,122.41x = 19,486.35 × 8,151.90
  4. Step 4: Simplify right side
    14,122.41x = 158,850,776.57
  5. Step 5: Solve for x
    x = 158,850,776.57/14,122.41
  6. Step 6: Final answer
    x = 11,248.14

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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.