Home / 14,486.13-19,986.18-8,111.76

Finding the Fourth Proportional to 14,486.13, 19,986.18 and 8,111.76

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Solution

The fourth proportional to 14,486.13, 19,986.18 and 8,111.76 is: 11,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.13 : 19,986.18 = 8,111.76 : x
  2. Step 2: Convert to fraction form
    14,486.13/19,986.18 = 8,111.76/x
  3. Step 3: Cross multiply
    14,486.13x = 19,986.18 × 8,111.76
  4. Step 4: Simplify right side
    14,486.13x = 162,123,095.48
  5. Step 5: Solve for x
    x = 162,123,095.48/14,486.13
  6. Step 6: Final answer
    x = 11,191.61

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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.