Home / 13,752.29-18,974.85-8,086.74

Finding the Fourth Proportional to 13,752.29, 18,974.85 and 8,086.74

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Solution

The fourth proportional to 13,752.29, 18,974.85 and 8,086.74 is: 11,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.29 : 18,974.85 = 8,086.74 : x
  2. Step 2: Convert to fraction form
    13,752.29/18,974.85 = 8,086.74/x
  3. Step 3: Cross multiply
    13,752.29x = 18,974.85 × 8,086.74
  4. Step 4: Simplify right side
    13,752.29x = 153,444,678.49
  5. Step 5: Solve for x
    x = 153,444,678.49/13,752.29
  6. Step 6: Final answer
    x = 11,157.76

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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.